Blunt cerebrovascular injuries can be diagnosed using whole body 16 multi-detector CT (MDCT); there's no need for an additional neck MDCT angiography examination according to a recent study conducted by researchers at the University of Maryland Medical Center and R. Adams Cowley Shock Trauma Center, both in Baltimore, MD. The study showed that whole body MDCT is just as accurate as neck MDCTA.
"In the past, blunt trauma patients would undergo whole-body MDCT and if there was evidence of cerebrovascular injuries, the patient would also undergo a neck MDCT angiography exam," said Clint Sliker, MD, lead author of the study.
Blunt cerebrovascular injuries are uncommon but potentially devastating injuries that can lead to stroke and death. These include dissections, pseudoaneurysms, and arteriovenous fistulae.
source: MedicalNewsToday
3.31.2008
3.30.2008
Toshiba Launches Breakthrough CT System - the Aquilion ONE
Toshiba America Medical Systems, Inc., a leader in diagnostic and medical imaging, will feature the world's first dynamic volume computed tomography (CT) system ' the Aquilion ONE' at this year's American College of Cardiology (ACC) annual meeting in Chicago, March 30 ' April 1, 2008 (Booth # 8001). This advanced diagnostic imaging system revolutionizes patient care because it can help reduce diagnosis time for life threatening diseases like heart disease and stroke from days and hours to mere minutes.
For the first time, physicians can see not only a three-dimensional depiction of an organ, but also the organ's dynamic blood flow and function. Unlike any other CT system, the Aquilion ONE can scan one organ ' including the heart, brain and others ' in one rotation because it covers up to 16 cm of anatomy using 320 ultra high resolution 0.5 mm detector elements. This reduces exam time, as well as radiation and contrast dose. With the Aquilion ONE, the organ or area is captured in a single rotation at one moment in time, eliminating the need to reconstruct slices from multiple points in time.
source: ad-hoc-news
For the first time, physicians can see not only a three-dimensional depiction of an organ, but also the organ's dynamic blood flow and function. Unlike any other CT system, the Aquilion ONE can scan one organ ' including the heart, brain and others ' in one rotation because it covers up to 16 cm of anatomy using 320 ultra high resolution 0.5 mm detector elements. This reduces exam time, as well as radiation and contrast dose. With the Aquilion ONE, the organ or area is captured in a single rotation at one moment in time, eliminating the need to reconstruct slices from multiple points in time.
source: ad-hoc-news
3.29.2008
Toshiba Receives FDA Clearance for Two CT Clinical Applications
TUSTIN, California — March 28, 2008 — Toshiba America Medical Systems, Inc. has received FDA clearance for two new CT clinical applications that will improve throughput and enhance workflow, while further reducing contrast and radiation dosage. The applications, SURECardio™ Prospective and Variable Helical Pitch (vHP), are available for new Toshiba AquilionTM 32- and 64-slice CT systems.
SURECardio Prospective
Toshiba's SURECardio Prospective helps reduce patient dose by up to 80 percent during coronary CTA exams by using a helical acquisition technique to provide one continuous image instead of multiple images produced by the current step-and-shoot techniques. SURECardio Prospective will automatically detect and adjust to patients with arrthymia, providing quicker, more conclusive exam results.
Variable Helical Pitch
Variable Helical Pitch (vHP) increases workflow and efficiency by enabling physicians to complete an exam of more than one anatomical region consecutively — i.e. without stopping to alter the helical pitch of the exam. Toshiba is the first vendor to introduce this type of technique.
source: Toshiba Medical
SURECardio Prospective
Toshiba's SURECardio Prospective helps reduce patient dose by up to 80 percent during coronary CTA exams by using a helical acquisition technique to provide one continuous image instead of multiple images produced by the current step-and-shoot techniques. SURECardio Prospective will automatically detect and adjust to patients with arrthymia, providing quicker, more conclusive exam results.
Variable Helical Pitch
Variable Helical Pitch (vHP) increases workflow and efficiency by enabling physicians to complete an exam of more than one anatomical region consecutively — i.e. without stopping to alter the helical pitch of the exam. Toshiba is the first vendor to introduce this type of technique.
source: Toshiba Medical
3.28.2008
Hybrid MRI-PET Scanner Reveals Tumors Earlier and in More Detail
Improved imaging technology promises more timely diagnosis and could be available for clinical use within three years.
Researchers this week announced a new, faster way of imaging inside the body that could detect tumors more quickly and lead to earlier treatment. Scientists from the University of Tübingen in Germany report in this week's Nature Medicine that they were able to locate and monitor tumor growth in mice with a scanner they developed that combines positron emission tomography (PET) and magnetic resonance imaging (MRI)—and said they were optimistic it could be ready to use in humans within three years.
source: Scientific American
Researchers this week announced a new, faster way of imaging inside the body that could detect tumors more quickly and lead to earlier treatment. Scientists from the University of Tübingen in Germany report in this week's Nature Medicine that they were able to locate and monitor tumor growth in mice with a scanner they developed that combines positron emission tomography (PET) and magnetic resonance imaging (MRI)—and said they were optimistic it could be ready to use in humans within three years.
source: Scientific American
3.27.2008
Repligen Initiates Phase 3 Clinical Trial of RG1068 for Pancreatic MRI Imaging
WALTHAM, MA - March 26, 2008 - Repligen Corporation (NASDAQ: RGEN) announced today that the Company has initiated a Phase 3 clinical trial to evaluate the use of RG1068, synthetic human secretin, to improve the assessment of pancreatic duct structures by magnetic resonance imaging (MRI). This Phase 3 study is a multi-center, baseline-controlled, single dose study in which approximately 250 patients will receive an unenhanced MRI followed by a secretin-enhanced MRI of the pancreas. This study is designed to assess the sensitivity and specificity of secretin-enhanced MRI to improve the ability to detect pancreatic duct abnormalities relative to MRI alone. Detailed visual assessment of the pancreatic ducts is important in the assessment, diagnosis and treatment of diseases such as acute and chronic pancreatitis. This study is being conducted at approximately 30 clinical sites within the United States and Canada.
"Based on discussions with the FDA, we believe a single positive Phase 3 clinical trial of similar design to our Phase 2 study will be sufficient for an NDA filing," stated Walter C. Herlihy, President and Chief Executive Officer of Repligen Corporation. "There are approximately 150,000 pancreatic MRI's conducted in the U.S. each year that could benefit from enhancement with secretin."
source: RepliGen Corporation
"Based on discussions with the FDA, we believe a single positive Phase 3 clinical trial of similar design to our Phase 2 study will be sufficient for an NDA filing," stated Walter C. Herlihy, President and Chief Executive Officer of Repligen Corporation. "There are approximately 150,000 pancreatic MRI's conducted in the U.S. each year that could benefit from enhancement with secretin."
source: RepliGen Corporation
3.25.2008
Siemens Installs First High-Definition PET-CT
HOFFMAN ESTATES, Ill., March 24 /PRNewswire/ -- Siemens Healthcare (http://www.siemens.com/healthcare) announces the official release and world's first clinical installation of HD-PET technology at UT Southwestern Medical Center in Dallas. The facility will leverage the new Biograph 40 TruePoint™ PET-CT system's High-Definition PET technology to offer consistently sharper and clearly defined images across the entire field of view.
Patients treated at UT Southwestern will benefit from the High-Definition PET-CT technology because their physicians will be able to more confidently delineate small lesions.
UT Southwestern always produced excellent PET images, even before HD-PET. But after the installation of Siemens HD-PET technology, the medical center produced even sharper images. Uptake in areas that previously seemed vague is now much clearer with HD-PET. In addition, HD-PET has added no additional processing time as compared to the previous system.
source Siemens Healthcare
Patients treated at UT Southwestern will benefit from the High-Definition PET-CT technology because their physicians will be able to more confidently delineate small lesions.
UT Southwestern always produced excellent PET images, even before HD-PET. But after the installation of Siemens HD-PET technology, the medical center produced even sharper images. Uptake in areas that previously seemed vague is now much clearer with HD-PET. In addition, HD-PET has added no additional processing time as compared to the previous system.
source Siemens Healthcare
MRI findings help forecast prostate cancer prognosis
Magnetic resonance imaging (MRI) findings in patients about to undergo radiation therapy for prostate cancer can help predict the likelihood that the cancer will return and spread post-treatment, according to a new study published in the April issue of the journal Radiology.
“This is the first study to show that MRI detection and measurement of the spread of prostate cancer outside the capsule of the prostate is an important factor in determining outcome for men scheduled to undergo radiation therapy,” said study co-author Fergus V. Coakley, M.D., professor of radiology and urology, vice chair for clinical services and section chief of abdominal imaging in the Department of Radiology at University of California, San Francisco.
source: Huliq.com
“This is the first study to show that MRI detection and measurement of the spread of prostate cancer outside the capsule of the prostate is an important factor in determining outcome for men scheduled to undergo radiation therapy,” said study co-author Fergus V. Coakley, M.D., professor of radiology and urology, vice chair for clinical services and section chief of abdominal imaging in the Department of Radiology at University of California, San Francisco.
source: Huliq.com
3.24.2008
Latest IMV CT Census Shows Slow-down in Expenditures for CT Technology
DES PLAINES, Ill.--(BUSINESS WIRE)--According to IMV Medical Information Division’s recent census of CT sites in the U.S., an estimated 68.7 million CT procedures were performed in 7,640 hospital and non-hospital sites in 2007. This represents an average annual growth rate of ~8% since 2003, when an estimated 50.1 million procedures were performed.
“While the number of CT procedures performed is growing steadily, 2008 CT capital budgets are decreasing, indicating a slowdown of purchase activity for replacement and additional units,” observed Lorna Young, Senior Director, Market Research. “From 2000 to 2008, the proportion of CT sites having zero dollars budgeted for CT increased from 51% to 83%. Given an installed base of over 10,000 CTs and an average replacement cycle of 7 years, the CT replacement market could account for sales of over 1,400 units per year. However, the number of sites budgeting for replacement units is slowing. Over the last five years, CT sales were driven by sites acquiring multi-slice CT scanners, and the proportion of installed multi-slice CTs grew from 27% of the 2002 installed base to 81% of the current CTs installed. It appears that purchase activity has slowed, as CT sites focus on the efficient utilization of their CT equipment.”
source: Business Wire
“While the number of CT procedures performed is growing steadily, 2008 CT capital budgets are decreasing, indicating a slowdown of purchase activity for replacement and additional units,” observed Lorna Young, Senior Director, Market Research. “From 2000 to 2008, the proportion of CT sites having zero dollars budgeted for CT increased from 51% to 83%. Given an installed base of over 10,000 CTs and an average replacement cycle of 7 years, the CT replacement market could account for sales of over 1,400 units per year. However, the number of sites budgeting for replacement units is slowing. Over the last five years, CT sales were driven by sites acquiring multi-slice CT scanners, and the proportion of installed multi-slice CTs grew from 27% of the 2002 installed base to 81% of the current CTs installed. It appears that purchase activity has slowed, as CT sites focus on the efficient utilization of their CT equipment.”
source: Business Wire
MRI: A Window to Genetic Properties of Brain Tumors
Newswise — Doctors diagnose and prescribe treatment for brain tumors by studying, under a microscope, tumor tissue and cell samples obtained through invasive biopsy or surgery. Now, researchers at the University of California, San Diego (UCSD) School of Medicine have shown that Magnetic Resonance Imaging (MRI) technology has the potential to non-invasively characterize tumors and determine which of them may be responsive to specific forms of treatment, based on their specific molecular properties. The study will be published on line by the Proceedings of the National Academy of Science (PNAS) the week of March 24.
“This approach reveals that, using existing imaging techniques, we can identify the molecular properties of tumors,” said Michael Kuo, M.D., assistant professor of interventional radiology at UCSD School of Medicine. Kuo and colleagues analyzed more than 2,000 genes that had previously been shown to have altered expression in Glioblastoma multiforme (GBM) tumors. They then mapped the correlations between gene expression and MRI features.
source: Newswise
“This approach reveals that, using existing imaging techniques, we can identify the molecular properties of tumors,” said Michael Kuo, M.D., assistant professor of interventional radiology at UCSD School of Medicine. Kuo and colleagues analyzed more than 2,000 genes that had previously been shown to have altered expression in Glioblastoma multiforme (GBM) tumors. They then mapped the correlations between gene expression and MRI features.
source: Newswise
3.22.2008
SkyCeilings Aid in MRI Scans
Evan Jordan Jr
Getting an MRI used to be an uncomfortable experience, but patients are getting their exams under perfectly sunny skies and cherry blossoms at Intermountain Medical Center in Murray, Utah, at least that's what the ceiling makes them think.
Utah's newest healthcare facility uses SkyCeilings to replicate the temperature, light and color of a sunny day. The SkyCeilings, a creation of The Sky Factory, are made up of multiple high-resolution photographic images of the sky or other nature scenes that are lit from behind by T-5 fluorescent or LED lighting. Such light emulates the temperature of natural daylight and is read by the brain as natural. The panels can also be installed on walls to create virtual windows.
source: BYU NewsNet
Getting an MRI used to be an uncomfortable experience, but patients are getting their exams under perfectly sunny skies and cherry blossoms at Intermountain Medical Center in Murray, Utah, at least that's what the ceiling makes them think.
Utah's newest healthcare facility uses SkyCeilings to replicate the temperature, light and color of a sunny day. The SkyCeilings, a creation of The Sky Factory, are made up of multiple high-resolution photographic images of the sky or other nature scenes that are lit from behind by T-5 fluorescent or LED lighting. Such light emulates the temperature of natural daylight and is read by the brain as natural. The panels can also be installed on walls to create virtual windows.
source: BYU NewsNet
3.21.2008
PET/CT May Unmask Hidden Cancers in Li-Fraumeni Patients
By Charles Bankhead
BOSTON, March 20 -- Occult malignancies in patients with Li-Fraumeni syndrome have more difficulty hiding from whole-body fluorodeoxyglucose F18 (FDG) PET/CT imaging, results of a preliminary clinical evaluation suggest.
Imaging revealed asymptomatic malignancies in three of 15 patients with Li-Fraumeni syndrome and no history of cancer, Judy E. Garber, M.D., of Dana-Farber Cancer Institute here, and colleagues, reported in the March 19 issue of the Journal of the American Medical Association.
Identification of the malignancies at an early stage allowed all three patients to undergo potentially curative treatment.
source: Medpage Today
BOSTON, March 20 -- Occult malignancies in patients with Li-Fraumeni syndrome have more difficulty hiding from whole-body fluorodeoxyglucose F18 (FDG) PET/CT imaging, results of a preliminary clinical evaluation suggest.
Imaging revealed asymptomatic malignancies in three of 15 patients with Li-Fraumeni syndrome and no history of cancer, Judy E. Garber, M.D., of Dana-Farber Cancer Institute here, and colleagues, reported in the March 19 issue of the Journal of the American Medical Association.
Identification of the malignancies at an early stage allowed all three patients to undergo potentially curative treatment.
source: Medpage Today
3.20.2008
MRI myths and misconceptions
Since its development in the mid 1970s, Magnetic Resonance Imaging, or MRI, has grown into a mainstream diagnostic imaging tool used in a wide variety of conditions. The unique ability of MRI to demonstrate the anatomy, and more recently the function of soft tissues in the body, continues to find new application in patient care. It is not surprising, given the widespread application of MRI, that the occasional myth should find its way into the latest TV medical drama, Web page or even physician/patient discussions. The following are several of the more common myths.
Myth: I can’t have an MRI because I have had a previous joint replacement.
Reality: Because the MRI uses a powerful magnet, it is important to keep metallic objects that are attracted to the magnetic field out of the scanning area. Due to the strength of the MRI magnet, even a small metallic object such as a paper clip, can have substantial force as it is drawn into the magnet, and could cause injury if the object struck someone inside the MRI scanner.
complete article at Penn State Live
Myth: I can’t have an MRI because I have had a previous joint replacement.
Reality: Because the MRI uses a powerful magnet, it is important to keep metallic objects that are attracted to the magnetic field out of the scanning area. Due to the strength of the MRI magnet, even a small metallic object such as a paper clip, can have substantial force as it is drawn into the magnet, and could cause injury if the object struck someone inside the MRI scanner.
complete article at Penn State Live
3.19.2008
Brain Imaging Technology Used in Interrogations
University Park, Pa. — There is evidence that brain imaging technology is being used to interrogate suspected terrorists despite concerns that it may not be reliable, and that it might inadvertently promote abuse of detainees, according to a Penn State researcher. He says the risk that such technology could license further abuse of detainees remains ever present, given President Bush’s March 8 veto of legislation that would have prohibited the CIA from conducting aggressive interrogations.
The technology — functional magnetic resonance imaging or fMRI — has been around since the 1990s. Neurosurgeons routinely use it to scan for brain tumors, and to diagnose and treat various disorders of the central nervous system.
But in recent times, fMRI has gained support from many in the intelligence community, who feel it could be a reliable tool in identifying terrorists from a group of suspects or detecting lies during an interrogation.
source material: Penn State Live
The technology — functional magnetic resonance imaging or fMRI — has been around since the 1990s. Neurosurgeons routinely use it to scan for brain tumors, and to diagnose and treat various disorders of the central nervous system.
But in recent times, fMRI has gained support from many in the intelligence community, who feel it could be a reliable tool in identifying terrorists from a group of suspects or detecting lies during an interrogation.
source material: Penn State Live
3.18.2008
New MRI tests show concussion perils
Even after a severe concussion, a brain can look normal and healthy on a traditional brain scan. But now a study co-authored by a Brigham Young University psychology professor, using a new kind of MRI technique, reveals brain changes that are subtle but significant.
The study, which appears in today's issue of the journal "Neurology," helps prove that concussions result in biological changes — and that long-lasting symptoms such as aggression and sleep problems are not just "psychological."
"We're just beginning to understand what is happening with concussions," said BYU psychology professor Erin Bigler, who conducted the study with colleagues at Baylor College of Medicine, including one of Bigler's former students, Elisabeth Wilde. "We're hoping this will lead to better and better ways to treat them."
source: Deseret News
The study, which appears in today's issue of the journal "Neurology," helps prove that concussions result in biological changes — and that long-lasting symptoms such as aggression and sleep problems are not just "psychological."
"We're just beginning to understand what is happening with concussions," said BYU psychology professor Erin Bigler, who conducted the study with colleagues at Baylor College of Medicine, including one of Bigler's former students, Elisabeth Wilde. "We're hoping this will lead to better and better ways to treat them."
source: Deseret News
3.17.2008
New Robotic Imaging Technology Holds Promise of Improved Cancer Care
WASHINGTON, March 17 /PRNewswire/ — New research released at the Society of Interventional Radiology’s (SIR) Annual Scientific Meeting in Washington, D.C., this week, holds promise of a new interventional imaging capability using advanced robotics provided by Siemens Healthcare (www.siemens.com/healthcare), to improve the value of chemoembolization in treating cancer.
The research, presented by Dr. John Angle, Associate Professor of Radiology, Chief, Division of Angiography, University of Virginia Health System in Charlottesville, at the “Advanced Imaging Symposium,” reveals clinical results from his case study using the Siemens Artis zeego®, a multi-axis C-arm that employs robotic technology to enable large-volume syngo® DynaCT acquisition for liver chemoembolization.
The Artis zeego is part of the new Artis zee® family of interventional imaging systems introduced by Siemens. Siemens is showcasing the Artis zee family at the SIR meeting in Booth #833.
source: MDMojo.com
The research, presented by Dr. John Angle, Associate Professor of Radiology, Chief, Division of Angiography, University of Virginia Health System in Charlottesville, at the “Advanced Imaging Symposium,” reveals clinical results from his case study using the Siemens Artis zeego®, a multi-axis C-arm that employs robotic technology to enable large-volume syngo® DynaCT acquisition for liver chemoembolization.
The Artis zeego is part of the new Artis zee® family of interventional imaging systems introduced by Siemens. Siemens is showcasing the Artis zee family at the SIR meeting in Booth #833.
source: MDMojo.com
3.16.2008
Disgusting videos key to first-ever brain imaging study comparing ways of controlling emotions
"Control yourself!"
Most of us haven't heard that admonition since our last childhood tantrum. Nonetheless, it's something we often tell ourselves, consciously or not, as we deal with life's daily ups and downs. The ability to regulate one's emotions is critical to successfully interacting with others. How we go about achieving that self-control has an equally important effect on our own well-being.
Now, researchers at Stanford have conducted the first-ever brain imaging study that directly contrasts two different techniques for emotion regulation. Functional magnetic resonance imaging (fMRI) was used to observe neural activity in people's brains as they employed each of the two methods in coping with one of the most visceral of human emotions: disgust.
The researchers found that while one method, cognitive reappraisal, reduced the intensity of negative emotions the participants experienced when exposed to videos of disgusting images, the other, expressive suppression, actually increased it.
article source: Stanford News Service
Most of us haven't heard that admonition since our last childhood tantrum. Nonetheless, it's something we often tell ourselves, consciously or not, as we deal with life's daily ups and downs. The ability to regulate one's emotions is critical to successfully interacting with others. How we go about achieving that self-control has an equally important effect on our own well-being.
Now, researchers at Stanford have conducted the first-ever brain imaging study that directly contrasts two different techniques for emotion regulation. Functional magnetic resonance imaging (fMRI) was used to observe neural activity in people's brains as they employed each of the two methods in coping with one of the most visceral of human emotions: disgust.
The researchers found that while one method, cognitive reappraisal, reduced the intensity of negative emotions the participants experienced when exposed to videos of disgusting images, the other, expressive suppression, actually increased it.
article source: Stanford News Service
3.15.2008
Lung Cancer Alliance Commends NCCN On Screening Guidelines
Washington, D.C. [March 14, 2008]--Lung Cancer Alliance (LCA) called the new screening guidelines announced by the National Comprehensive Cancer Network (NCCN) “a positive step in the right direction that will encourage those at high risk for lung cancer to fully investigate their option of getting a CT scan.”
LCA President Laurie Fenton Ambrose said that lung cancer will continue to kill more people each year than all the other major cancers combined until more at risk people realize the urgency of being diagnosed early.
Currently only 16% of lung cancer patients are being diagnosed at an early and curable stage.
To date only CT scanners can detect lung cancers early–a fact that no one disputes–but the statistical debate goes on.
source: Lung Cancer Alliance News
LCA President Laurie Fenton Ambrose said that lung cancer will continue to kill more people each year than all the other major cancers combined until more at risk people realize the urgency of being diagnosed early.
Currently only 16% of lung cancer patients are being diagnosed at an early and curable stage.
To date only CT scanners can detect lung cancers early–a fact that no one disputes–but the statistical debate goes on.
source: Lung Cancer Alliance News
3.14.2008
Medicare to Continue Coverage of Heart CT Scans
In reversing a decision made in December, the Centers for Medicare and Medicaid Services have now indicated that they will continue to cover a form of Cat Scan that can detect heart disease. The scans act as an alternative procedure to angiography, which is an invasive procedure only performed on patients who show signs of heart disease. There is a growing concern that the CT scans are increasingly being done on patients who show no signs of heart disease.
In an an article in the New York Times, the Centers for Medicare and Medicaid Services, said there remained “uncertainty regarding any potential health benefits” from the scans and described the existing evidence as of “overall limited quality and limited applicability.” The agency said Wednesday that it would continue to leave payments for the scans up to the local insurance carriers it employs to oversee medical claims.
In an an article in the New York Times, the Centers for Medicare and Medicaid Services, said there remained “uncertainty regarding any potential health benefits” from the scans and described the existing evidence as of “overall limited quality and limited applicability.” The agency said Wednesday that it would continue to leave payments for the scans up to the local insurance carriers it employs to oversee medical claims.
3.13.2008
Studies Using the FONAR UPRIGHT® Multi-Position™ MRI in Evaluating the Dynamic Aspects of Chiari Malformation
Studies Using the FONAR UPRIGHT® Multi-Position™ MRI Published in The Journal of Neurology As Beneficial in Evaluating the Dynamic Aspects of Chiari Malformation
MELVILLE, NEW YORK, March 13, 2008 - FONAR Corporation (NASDAQ-FONR), The Inventor of MR Scanning, announced that the value of the FONAR UPRIGHT© Multi-Position™ MRI in the diagnosis and evaluation of Chiari malformation patients has just been published by The Chiari Institute, North Shore-Long Island Jewish Health Systems, in the Journal of Neurosurgery: Spine, December 2007, Volume 7
http://thejns.org/doi/abs/10.3171/SPI-07/12/601 and www.northshorelij.com/workfiles/chiari/J%20Neurosurg%20Spine%20article%20Dec%2007.pdf
The authors were Thomas H. Milhorat, M.D., Paolo A. Bolognese, M.D., Misao Nishikawa, M.D., of the Department of Neurosurgery, The Chiari Institute, North Shore-Long Island Jewish Health Systems; Nazli B. McDonnell, M.D., PhD., of the NIH National Institute on Aging; and Clair A. Francomano, M.D. of the Greater Baltimore Medical Center. The article, titled, “Syndrome of occipitoatlantoaxial hypermobility, cranial settling, and Chiari malformation Type I in patients with hereditary disorders of connective tissue”, examined patients with CT as well as the FONAR UPRIGHT® MRI.
source" Fonar
MELVILLE, NEW YORK, March 13, 2008 - FONAR Corporation (NASDAQ-FONR), The Inventor of MR Scanning, announced that the value of the FONAR UPRIGHT© Multi-Position™ MRI in the diagnosis and evaluation of Chiari malformation patients has just been published by The Chiari Institute, North Shore-Long Island Jewish Health Systems, in the Journal of Neurosurgery: Spine, December 2007, Volume 7
http://thejns.org/doi/abs/10.3171/SPI-07/12/601 and www.northshorelij.com/workfiles/chiari/J%20Neurosurg%20Spine%20article%20Dec%2007.pdf
The authors were Thomas H. Milhorat, M.D., Paolo A. Bolognese, M.D., Misao Nishikawa, M.D., of the Department of Neurosurgery, The Chiari Institute, North Shore-Long Island Jewish Health Systems; Nazli B. McDonnell, M.D., PhD., of the NIH National Institute on Aging; and Clair A. Francomano, M.D. of the Greater Baltimore Medical Center. The article, titled, “Syndrome of occipitoatlantoaxial hypermobility, cranial settling, and Chiari malformation Type I in patients with hereditary disorders of connective tissue”, examined patients with CT as well as the FONAR UPRIGHT® MRI.
source" Fonar
3.12.2008
MRI Scans Could Have Antidepressant Effect
ISLAMABAD: High-speed magnetic resonance imaging scans produce effects in rats similar to the use of antidepressants, confirming observations made in human patients, U.S. researchers reported on Thursday.
The finding suggests that electromagnetic fields can affect brain biology, the team at McLean Hospital and Harvard Medical School reported.
"We found that when we administered the magnetic stimulation to the rats, we saw an antidepressant-like effect, the same effect as seen after administration of standard antidepressant drugs," said William Carlezon, director of McLean’s Behavioral Genetics Laboratory.
source article: PakTribune
The finding suggests that electromagnetic fields can affect brain biology, the team at McLean Hospital and Harvard Medical School reported.
"We found that when we administered the magnetic stimulation to the rats, we saw an antidepressant-like effect, the same effect as seen after administration of standard antidepressant drugs," said William Carlezon, director of McLean’s Behavioral Genetics Laboratory.
source article: PakTribune
3.11.2008
Franklin & Seidelmann Publishes Complex Podiatry MRI Study
Subspecialty Teleradiology Model Accelerates Study Conclusions
CLEVELAND, March 11 /PRNewswire/ -- Franklin & Seidelmann Subspecialty Radiology (F&S) announced that it recently completed a complex podiatry study that was published in the March, 2008 issue of the journal Skeletal Radiology. Because of its subspecialty teleradiology model, which aggregates a high volume of MRI interpretations coupled with specialized podiatry expertise, F&S was able to complete the study in just a few months rather than the years that would be required in a traditional radiology environment.
The scientific article, "Plantar fasciitis and calcaneal spur formation are associated with abductor digiti minimi atrophy on MRI of the foot,"describes a study conducted from August 2006 to January 2007 with 200 patients of all ages from 40 states referred for an MRI of the hindfoot due to the presence of heel pain.
PR Newswire
CLEVELAND, March 11 /PRNewswire/ -- Franklin & Seidelmann Subspecialty Radiology (F&S) announced that it recently completed a complex podiatry study that was published in the March, 2008 issue of the journal Skeletal Radiology. Because of its subspecialty teleradiology model, which aggregates a high volume of MRI interpretations coupled with specialized podiatry expertise, F&S was able to complete the study in just a few months rather than the years that would be required in a traditional radiology environment.
The scientific article, "Plantar fasciitis and calcaneal spur formation are associated with abductor digiti minimi atrophy on MRI of the foot,"describes a study conducted from August 2006 to January 2007 with 200 patients of all ages from 40 states referred for an MRI of the hindfoot due to the presence of heel pain.
PR Newswire
World's First Dynamic Volume CT Scanner Will Speed Up Diagnosis And Alleviate Radiation Concerns
The world's first dynamic volume CT (computerised tomography) scanner, which can scan a heart in a single heartbeat while administering just a fifth of the radiation dose of conventional scanners*, is launched at the European Congress of Radiology (Vienna).
Called the Aquilion ONE™, the new 320-slice CT machine is the first to allow radiologists to view continuous 4D (like video) real-time images of the heart and brain without the patient having to move up and down through the scanner.
With its 16cm detector - five times the size of traditional 64-slice CT scanners - and its dynamic volume CT imaging, clinicians will now be able to observe blood flow (perfusion), movement, and other functions of entire organs, and in precise detail.
source: Medical News Today
Called the Aquilion ONE™, the new 320-slice CT machine is the first to allow radiologists to view continuous 4D (like video) real-time images of the heart and brain without the patient having to move up and down through the scanner.
With its 16cm detector - five times the size of traditional 64-slice CT scanners - and its dynamic volume CT imaging, clinicians will now be able to observe blood flow (perfusion), movement, and other functions of entire organs, and in precise detail.
source: Medical News Today
3.10.2008
Bayer to launch world’s first pre-filled cartridges for MRI contrast media
Berlin, March 10, 2008 – Bayer Schering Pharma plans to launch the world’s first pre-filled contrast-medium cartridges for magnetic resonance imaging (MRI). The new cartridges containing Gadovist® will be launched in Sweden and Denmark in summer 2008. Upon local approval, Bayer Schering Pharma has scheduled to launch the product in further countries. The new pre-filled contrast-medium cartridges feature significant advantages. At present, contrast media are delivered in bottles and have to be transferred to empty cartridges. This step will no longer be necessary because pre-filled cartridges are immediately ready for the injectors.
"With these new products, we are specifically meeting customer wishes – to improve handling and accelerate work processes," said Berthold Baldus, Head of Bayer Schering Pharma’s European Business Unit Diagnostic Imaging.
source: Bayer Healthcare
"With these new products, we are specifically meeting customer wishes – to improve handling and accelerate work processes," said Berthold Baldus, Head of Bayer Schering Pharma’s European Business Unit Diagnostic Imaging.
source: Bayer Healthcare
Combo MRI/PET Scanner
Two kinds of body imaging -- positron emission tomography (PET) and magnetic resonance imaging (MRI) -- have been combined for the first time in a single scanner.
MRI scans provide exquisite structural detail but little functional information, while PET scans -- which follow a radioactive tracer in the body -- can show body processes but not structures, said Simon Cherry, professor and chair of biomedical engineering at UC Davis. Cherry's lab built the scanner for studies with laboratory mice, for example in cancer research.
"We can correlate the structure of a tumor by MRI with the functional information from PET, and understand what's happening inside a tumor," Cherry said.
source: MedicalNewsToday
MRI scans provide exquisite structural detail but little functional information, while PET scans -- which follow a radioactive tracer in the body -- can show body processes but not structures, said Simon Cherry, professor and chair of biomedical engineering at UC Davis. Cherry's lab built the scanner for studies with laboratory mice, for example in cancer research.
"We can correlate the structure of a tumor by MRI with the functional information from PET, and understand what's happening inside a tumor," Cherry said.
source: MedicalNewsToday
3.09.2008
Reassessing medical imaging
By Daniel Lee
A growing number of people are getting CT and PET scans, multi-dimensional images that can help physicians diagnose and treat numerous conditions. The scans are painless and often life-saving.
But concerns are growing about their use. Are too many being given and are there long-term effects from radiation overexposure? How can insurance companies hold down the costs? And who will decide -- the doctor or the insurance company -- when a patient should have a scan?
In the latest move, Indianapolis-based health insurer WellPoint last month unveiled its newest business unit -- a company with a new computer program that WellPoint says is designed to educate physicians and patients about overexposure to radiation from CT (computed tomography), PET (positron emission tomography) and nuclear medicine scans.
source: Indystar.com
A growing number of people are getting CT and PET scans, multi-dimensional images that can help physicians diagnose and treat numerous conditions. The scans are painless and often life-saving.
But concerns are growing about their use. Are too many being given and are there long-term effects from radiation overexposure? How can insurance companies hold down the costs? And who will decide -- the doctor or the insurance company -- when a patient should have a scan?
In the latest move, Indianapolis-based health insurer WellPoint last month unveiled its newest business unit -- a company with a new computer program that WellPoint says is designed to educate physicians and patients about overexposure to radiation from CT (computed tomography), PET (positron emission tomography) and nuclear medicine scans.
source: Indystar.com
3.08.2008
Magnetic Resonance Imaging: Market Trends
Darshana De - Frost & Sullivan Research Analyst
MRI systems represent one of the strongest markets in the medical imaging industry. MRI is a non-invasive method of using a magnetic field and radio waves to create detailed images of the inside of the human body. It was originally used to view the central nervous system. With time, its use has expanded to study the internal anatomical structures of the human body.
The hydrogen protons inside our body have magnetic property which, when placed inside a large magnet, like the MRI machine, can be magnetised. An additional magnetic field introduced in the form of pulses that excite the hydrogen protons to higher energy level interact with the tissues giving rise to electromagnetic signals. These are then acquired and converted into images according to their energy content. Ever since the technology came into existence, it has been considered as a ‘miracle technology’.
complete article: OBBeC.com
MRI systems represent one of the strongest markets in the medical imaging industry. MRI is a non-invasive method of using a magnetic field and radio waves to create detailed images of the inside of the human body. It was originally used to view the central nervous system. With time, its use has expanded to study the internal anatomical structures of the human body.
The hydrogen protons inside our body have magnetic property which, when placed inside a large magnet, like the MRI machine, can be magnetised. An additional magnetic field introduced in the form of pulses that excite the hydrogen protons to higher energy level interact with the tissues giving rise to electromagnetic signals. These are then acquired and converted into images according to their energy content. Ever since the technology came into existence, it has been considered as a ‘miracle technology’.
complete article: OBBeC.com
Acceleware Enters the Imaging Market with AxRecon
European Congress of Radiology - Vienna, Austria – Mar. 07, 2008 – Acceleware Corp. (TSX-V: AXE), a leading developer of acceleration solutions for high-performance computing, today announced the launch of its AxRecon image reconstruction solution for the medical imaging, security, and non-destructive testing markets. Image reconstruction for Computed Tomography (CT) Scanners often takes hours of processing time and represents a major barrier to efficiency for many organizations. Acceleware’s solution reduces the time required to complete this work from hours to minutes to speed up the imaging workflow. AxRecon will be demonstrated at the European Congress of Radiology (ECR) this week in Vienna, Austria, booth #435.
“Our entry into the medical and commercial imaging market space represents a significant growth opportunity for Acceleware, and is consistent with Acceleware’s long-term growth strategy to tackle new markets,” said Sean Krakiwsky, CEO of Acceleware. “The benefits of higher throughput and image quality that are already being realized by early customers of AxRecon™ will help us drive adoption of this product within the broader imaging market.”
Acceleware
“Our entry into the medical and commercial imaging market space represents a significant growth opportunity for Acceleware, and is consistent with Acceleware’s long-term growth strategy to tackle new markets,” said Sean Krakiwsky, CEO of Acceleware. “The benefits of higher throughput and image quality that are already being realized by early customers of AxRecon™ will help us drive adoption of this product within the broader imaging market.”
Acceleware
3.07.2008
New Development In Computed Tomography: Dual Energy
Encouraged by the outstanding marketing success of the worldwide first Dual-Source CT system Somatom Definition with two X-ray tubes that simultaneously generate different energies, Siemens Healthcare has already developed six specific dual energy applications. At the ECR 2008, Siemens presents four new applications that simplify the diagnosis of diseases of the heart, brain, lungs and extremity joints.
Research in computed tomography is currently focused on using dual energy (DE) to distinguish between different tissues on CT images. While other manufacturers are trying to generate different energies with a single X-ray tube, Siemens launched the Somatom Definition already four years ago - a Dual Source CT scanner with two X-ray tubes that simultaneously work with two different radiation energies. A great variety of information about the type and composition of the tissue and the perfusion of an organ can be derived from a data record acquired with a single scan for which several examination steps or procedures had been necessary in the past.
source: Siemens Healthcare
Research in computed tomography is currently focused on using dual energy (DE) to distinguish between different tissues on CT images. While other manufacturers are trying to generate different energies with a single X-ray tube, Siemens launched the Somatom Definition already four years ago - a Dual Source CT scanner with two X-ray tubes that simultaneously work with two different radiation energies. A great variety of information about the type and composition of the tissue and the perfusion of an organ can be derived from a data record acquired with a single scan for which several examination steps or procedures had been necessary in the past.
source: Siemens Healthcare
MRI / PET Scanner Combo
Two kinds of body imaging -- positron emission tomography (PET) and magnetic resonance imaging (MRI) -- have been combined for the first time in a single scanner.
MRI scans provide exquisite structural detail but little functional information, while PET scans -- which follow a radioactive tracer in the body -- can show body processes but not structures, said Simon Cherry, professor and chair of biomedical engineering at UC Davis. Cherry's lab built the scanner for studies with laboratory mice, for example in cancer research.
"We can correlate the structure of a tumor by MRI with the functional information from PET, and understand what's happening inside a tumor," Cherry said.
complete post at UC Davis
MRI scans provide exquisite structural detail but little functional information, while PET scans -- which follow a radioactive tracer in the body -- can show body processes but not structures, said Simon Cherry, professor and chair of biomedical engineering at UC Davis. Cherry's lab built the scanner for studies with laboratory mice, for example in cancer research.
"We can correlate the structure of a tumor by MRI with the functional information from PET, and understand what's happening inside a tumor," Cherry said.
complete post at UC Davis
3.06.2008
PET's Targeted Imaging May Lead to Earlier, More Accurate Diagnosis of Dementia and Alzheimer's Disease
Early Diagnosis May Improve Prognosis for Patients, Reports Article in the Journal of Nuclear Medicine
Reston, Va.—Researchers involved in a large, multi-institutional study using positron emission tomography (PET) imaging with the radiotracer fluorodeoxyglucose (FDG) were able to classify different types of dementia with very high rates of success, raising hopes that dementia diagnoses may one day be made at earlier stages.
"Previously, scientists have been able to look only at the surface of the brain to differentiate various types of dementia," said Lisa Mosconi, Ph.D., assistant professor of psychiatry at the New York University School of Medicine. "With FDG PET, we were able to develop standardized disease-specific patterns from which we could correctly classify dementia more than 94 percent of the time."
source: SNM Press Release
Reston, Va.—Researchers involved in a large, multi-institutional study using positron emission tomography (PET) imaging with the radiotracer fluorodeoxyglucose (FDG) were able to classify different types of dementia with very high rates of success, raising hopes that dementia diagnoses may one day be made at earlier stages.
"Previously, scientists have been able to look only at the surface of the brain to differentiate various types of dementia," said Lisa Mosconi, Ph.D., assistant professor of psychiatry at the New York University School of Medicine. "With FDG PET, we were able to develop standardized disease-specific patterns from which we could correctly classify dementia more than 94 percent of the time."
source: SNM Press Release
Toshiba MR, CT and Ultrasound Named Best in KLAS in 2007
TUSTIN, Calif.--(BUSINESS WIRE)--KLAS recently named Toshiba’s AquilionTM 64, XarioTM and Vantage 1.5T MR “Best in KLAS” in its Top 20 Year-End Report for 2007. This recognition for leadership in working with customers to maintain satisfaction, gives Toshiba America Medical Systems, Inc. the top ratings in the CT, MR and ultrasound categories. Furthermore, Toshiba outpaced all other medical equipment vendors by securing the most number one medical equipment rankings in 2007.
“We are extremely proud of our KLAS rankings because it demonstrates Toshiba’s commitment to making sure its customers are satisfied with our systems and support,” said Larry Dentice, senior vice president and general manager, Toshiba. “Ensuring that the medical community is able to use our equipment to its full capacity means patients are getting better care. In the end, that’s the real reward.”
source: Business Wire
“We are extremely proud of our KLAS rankings because it demonstrates Toshiba’s commitment to making sure its customers are satisfied with our systems and support,” said Larry Dentice, senior vice president and general manager, Toshiba. “Ensuring that the medical community is able to use our equipment to its full capacity means patients are getting better care. In the end, that’s the real reward.”
source: Business Wire
3.05.2008
Comprehensive Diagnosis Of Heart Disease With A Single CT Scan
In the current issue of the journal Circulation, a research team from the Medical University of South Carolina's (MUSC) Heart & Vascular Center report their initial experience with a novel imaging technique that enables comprehensive diagnosis of heart disease based on a single computerized tomographic (CT) scan.
The team, led by Balazs Ruzsics, MD, PhD; Eric Powers, MD, medical director of MUSC Heart and Vascular Center; and U. Joseph Schoepf, MD, director of CT Research and Development, explored how CT scans can now detect blocked arteries and narrowing of the blood vessels in the heart in addition to poor blood flow in the heart muscle.
soyrce: target= "_blank">MedicalNewsToday
The team, led by Balazs Ruzsics, MD, PhD; Eric Powers, MD, medical director of MUSC Heart and Vascular Center; and U. Joseph Schoepf, MD, director of CT Research and Development, explored how CT scans can now detect blocked arteries and narrowing of the blood vessels in the heart in addition to poor blood flow in the heart muscle.
soyrce: target= "_blank">MedicalNewsToday
GE Healthcare To Be The Sole Supplier Of Leading Magnetic Resonance Imaging (MRI) Technology At The Beijing 2008 Olympics
Beijing, CHINA, - Today, GE Healthcare a division of General Electric (NYSE: GE), announced its role as the sole supplier of Magnetic Resonance Imaging (MRI) technology of the Beijing 2008 Olympic Games. Installed at the Olympic Village General Hospital, two of GE Healthcare’s advanced MRI technologies, the Signa HDe 1.5T will be accessible to be used on all international competing athletes during the Games.
These technologies within close proximity of all the sporting competitions will enable clinicians to diagnose potential injuries earlier or simply monitor treatment with a view to maximize the time of play for an athlete - in other words, ensure a quick return to play. Every day an athlete spends in rehab is a day lost in training, which is why diagnosing injuries earlier or monitoring the recovery in real time is crucial for elite performance.
GE Healthcare
These technologies within close proximity of all the sporting competitions will enable clinicians to diagnose potential injuries earlier or simply monitor treatment with a view to maximize the time of play for an athlete - in other words, ensure a quick return to play. Every day an athlete spends in rehab is a day lost in training, which is why diagnosing injuries earlier or monitoring the recovery in real time is crucial for elite performance.
GE Healthcare
3.04.2008
Ceramic motors will allow surgeons to operate in MRI scanners
An international team of engineers and researchers has developed a surgical robot that incorporates non-magnetic ceramic motors that allow it to be used safely in the strong magnetic field of an MRI (magnetic resonance imaging) system. The neuroArm robot will allow surgeons to perform precision surgery on patients while they are in an MRI scanner, which can be used to view the progress of the operation in real time.
Until now, the magnetic nature of conventional electric motors and their use of metal components has prevented surgeons from conducting operations within MRI machines. The new arm, which is formed from plastics, titanium and other non-magnetic materials, can be used safely in scanners to perform intricate surgery to accuracies of 0.01mm.
source: Drives and Controls
Until now, the magnetic nature of conventional electric motors and their use of metal components has prevented surgeons from conducting operations within MRI machines. The new arm, which is formed from plastics, titanium and other non-magnetic materials, can be used safely in scanners to perform intricate surgery to accuracies of 0.01mm.
source: Drives and Controls
3.03.2008
Most powerful MRI examines human brain processes
Ana Genkova
With the world's most powerful Magnetic Resonance Imaging (MRI) scanner at the UIC Center for Magnetic Resonance Research, experts can now view images of the metabolic processes in the human brain. The 9.4 Tesla (9.4T) is a state-of-the-art apparatus allowing promising advancements in human neuroscience.
Some potential applications of the 9.4T scanner include monitoring and improving therapy for stroke and tumor patients, early detection of diseases and further understanding of brain processes and abnormalities.
"Personalized healthcare is the ultimate goal," said Dr. Keith Thulborn, director of the MR Research Program. As he explained, monitoring metabolic processes allows for an individualized therapy.
source: Chicago Flame
With the world's most powerful Magnetic Resonance Imaging (MRI) scanner at the UIC Center for Magnetic Resonance Research, experts can now view images of the metabolic processes in the human brain. The 9.4 Tesla (9.4T) is a state-of-the-art apparatus allowing promising advancements in human neuroscience.
Some potential applications of the 9.4T scanner include monitoring and improving therapy for stroke and tumor patients, early detection of diseases and further understanding of brain processes and abnormalities.
"Personalized healthcare is the ultimate goal," said Dr. Keith Thulborn, director of the MR Research Program. As he explained, monitoring metabolic processes allows for an individualized therapy.
source: Chicago Flame
3.02.2008
Arsenic likely to be powerful imaging agent in detecting cancers
"Long neglected as an awkward Cinderella, arsenic has great potential for new imaging agents and therapeutics based on multiple isotopes with diverse useful characteristics,” said Dr. Ralph Mason.
By UT Southwestern Medical Center, [RxPG] Arsenic linked to a drug that binds to the blood vessels of cancerous tumors provides a powerful imaging agent that could one day allow physicians to detect hard-to-find tumors and more closely monitor cancer’s response to therapy, researchers at UT Southwestern Medical Center have found.
The findings, based on animal studies and appearing in today’s issue of Clinical Cancer Research, mark the first time arsenic has been used to label antibodies for the detection of tumors.
RxPG News
By UT Southwestern Medical Center, [RxPG] Arsenic linked to a drug that binds to the blood vessels of cancerous tumors provides a powerful imaging agent that could one day allow physicians to detect hard-to-find tumors and more closely monitor cancer’s response to therapy, researchers at UT Southwestern Medical Center have found.
The findings, based on animal studies and appearing in today’s issue of Clinical Cancer Research, mark the first time arsenic has been used to label antibodies for the detection of tumors.
RxPG News
3.01.2008
Rapid Growth Prompts Health Plans to Target Advanced Imaging Services
WASHINGTON, DC—Faced with double-digit annual increases in the use of advanced imaging services, such as CT and PET scans, health plans are stepping up efforts to slow the proliferation of advanced imaging services, according to a study released today by the Center for Studying Health System Change (HSC).
Along with escalating cost pressures resulting from the rapid growth in imaging utilization, there also are growing concerns about patient safety and quality of care related to rapid increases in magnetic resonance imaging (MRI), computed tomography (CT) scans, positron emission tomography (PET) scans and nuclear cardiology imaging.
For example, according to a 2007 McKinsey and Co. analysis, the number of CT scans performed in the United States grew 13 percent annually between 2000 and 2005, rising from 12 CT scans per 100 people in 2000 to 22 scans per 100 people in 2005.
source: Health System Change
Along with escalating cost pressures resulting from the rapid growth in imaging utilization, there also are growing concerns about patient safety and quality of care related to rapid increases in magnetic resonance imaging (MRI), computed tomography (CT) scans, positron emission tomography (PET) scans and nuclear cardiology imaging.
For example, according to a 2007 McKinsey and Co. analysis, the number of CT scans performed in the United States grew 13 percent annually between 2000 and 2005, rising from 12 CT scans per 100 people in 2000 to 22 scans per 100 people in 2005.
source: Health System Change
Subscribe to:
Posts (Atom)
