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MDCT: Stroke treatment question answered in CT of insula
June 19, 2013 -- WASHINGTON, DC - To treat or not to treat? Boston researchers are increasingly confident that they can predict treatment outcomes in patients with ischemic stroke of the middle cerebral artery by measuring infarct size in the insula at CT, according to a presentation at the International Symposium on Multidetector-Row CT.
MDCT: Informatics can help evaluate CT image quality
June 18, 2013 -- Radiology has made great progress in the science of improving CT image quality and controlling radiation dose, according to Dr. Eliot Siegel. Imaging informatics can help put this science into clinical practice, he said on Monday at the International Symposium on Multidetector-Row CT in Washington, DC.
MDCT: Radiologists should control radiation dose discussion
June 17, 2013 -- WASHINGTON, DC - For the past 10 years, the potential harms of medical radiation have often been overblown, scaring patients away from necessary scans. It's time to start talking about the benefits, according to the opening talk by Dr. U. Joseph Schoepf at the International Symposium on Multidetector-Row CT.
Postmortem CT, 3D touchscreen table aid virtual autopsy
June 14, 2013 -- Postmortem CT can be an invaluable autopsy planning tool. With the help of a life-sized, 3D-enabled touchscreen table, pathologists can also view and manipulate images in 3D modes to locate pathology, perform virtual dissections, and decide on the best autopsy approach.
JAMA Pediatrics: CT scans put children at higher cancer risk
June 10, 2013 -- A landmark study that tracked pediatric CT radiation doses in large health maintenance organizations across the U.S. found that the volume of CT scans nearly doubled between 1996 and 2005, and that the scans may put young patients at greater risk of future cancer, according to JAMA Pediatrics.
Women can start colon cancer screening later than men
June 10, 2013 -- Women can be screened for colorectal cancer five to 10 years later than men, according to an Italian study published on June 11 in Cancer. The different findings for men and women in more than 7,000 patients could eventually translate into different screening recommendations based on gender, the investigators wrote.
8-year study finds polyp surveillance safe
June 7, 2013 -- A large eight-year screening study suggests that 6- to 9-mm colorectal polyps do not grow rapidly enough in vivo to pose a significant danger of cancer and therefore don't need to be removed immediately, U.S. researchers reported on Friday at the 2013 European Society of Gastrointestinal and Abdominal Radiology meeting.
What's causing the delay in CT lung screening guidelines?
June 3, 2013 -- A growing body of data points to the effectiveness of CT lung cancer screening. But clinicians are still waiting for national guidelines that will open the door to reimbursement for screening at-risk individuals. Thoracic surgeon Dr. Frederic W. Grannis Jr. wonders if the politics of CT screening is contributing to the delay.
Contrast use spikes CT radiation dose
May 30, 2013 -- The use of contrast media during CT scans significantly increases how much radiation patients absorb in amounts that vary by organ, researchers report in the June edition of the American Journal of Roentgenology. Radiologists should account for the expected dose increases when setting scanner protocols, they said.
Confusion over radiation risk could lead to inappropriate exams
May 29, 2013 -- When radiologists have access to radiation exposure histories for patients, most will take them into consideration when assessing the risk of further exposure in future imaging exams, according to a new study published in the June issue of the American Journal of Roentgenology. But should they?
Plaque volume on CCTA outperforms luminal narrowing for diagnosis
May 29, 2013 -- Total plaque volume at coronary CT angiography (CCTA) is a more reliable predictor of stenosis than luminal narrowing -- to the point where it could help differentiate between patients who have stenosis detected on CCTA and the smaller number with true flow-limiting lesions that need treatment, wrote researchers in the Journal of the American College of Cardiology.
Clear scanner protocols can help avoid CT radiation mistakes
May 27, 2013 -- CT protocols are getting more complex with each new scanner generation, challenging even the best-run radiology departments. Fortunately, a comprehensive protocol plan can minimize the fuss -- and the potential for dangerous mistakes, according to a talk at the Virtual Symposium on Radiation Safety and Computed Tomography.
NLST update: CT sees twice the lung cancers of x-ray
May 23, 2013 -- A new analysis of data from the landmark 2011 National Lung Screening Trial (NLST) found that low-dose CT detected twice as many early-stage lung cancers as x-ray on initial screening, cementing CT's promise as a tool that can reduce lung cancer mortality by 20% or more, according to results published in the New England Journal of Medicine.
BMJ: Megastudy links pediatric CT to higher cancer rates
May 23, 2013 -- The largest study to probe the effects of ionizing radiation since the atomic bomb survivor studies shows that cancer incidence does rise among younger patients -- although only in small amounts -- in the years following their exposure to CT scans, according to an Australian article published May 21 in BMJ.
ATS: VA lung cancer study embraces broader screening criteria
May 21, 2013 -- A small CT lung cancer screening study of U.S. veterans found a higher rate of disease compared to the landmark National Lung Screening Trial, according to results presented at this week's American Thoracic Society (ATS) meeting in Philadelphia. The higher prevalence could fuel debate surrounding the criteria for patient selection.
CAD helps detect and treat skull fusion in infants
May 20, 2013 -- Computer-aided detection (CAD) technology can be an invaluable tool for quantitative diagnosis and treatment planning of craniosynostosis, or premature fusion of skull sutures in infants, researchers from Children's National Medical Center in Washington, DC, have found.
4D musculoskeletal CT offers window into joint disorders
May 17, 2013 -- There's still a lot to learn about how bones interact in joints during movement, but 4D musculoskeletal CT can help close that knowledge gap, paving the way for new understanding of joint disorders and how to treat them, according to researchers from Monash Health Centre in Melbourne, Australia.
A radiologist reflects on the Boston Marathon bombings
May 16, 2013 -- Monday, April 15 -- Patriots' Day in Boston -- started much like any other day for radiologist Dr. Robert Ward of Tufts Medical Center. But it turned out to be anything but normal after two bombs exploded at the end of the Boston Marathon, sending dozens of injured people to Tufts with battlefield-like injuries.
Technologists' CT training called woefully inadequate
May 15, 2013 -- CT might be the mainstay of medical imaging, but the basic curriculum for radiologic technologist training hardly mentions the modality, and training centers that do teach it are few and far between, according to a talk on May 10 at the Virtual Symposium on Radiation Safety and Computed Tomography.
CCTA for chest pain cuts costs, admissions
May 14, 2013 -- One of the largest studies yet comparing medical resource use and outcomes among chest pain patients found that coronary CT angiography (CCTA) reduced medical resource utilization compared to standard care, generating fewer hospital admissions and shorter emergency room stays, researchers reported in the Journal of the American College of Cardiology.
ACCP recommends lung cancer screening with CT
May 7, 2013 -- The American College of Chest Physicians (ACCP) today recommended lung cancer screening with low-dose CT for patients at high risk of the disease. But the new guidelines closely follow more conservative recommendations for screening.
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