ICR: Survey reveals major knowledge gaps on radiation dose
September 15, 2014 -- DUBAI - The lack of knowledge among medical staff about radiation dose -- specifically for CT scans -- remains a serious concern, and patients still receive very little information about the pros and cons of scans, according to a survey presented at the International Congress of Radiology (ICR).
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Perfusion CT's great potential remains unrealized
September 15, 2014 -- Challenges remain on the road to more precise assessment of tumor treatment response with CT perfusion, but the techniques are already robust and far more sensitive than the old methods based on tumor size. In this emerging field, tumor biology and treatment response combine to make CT an ideal modality for monitoring cancer treatment, according to Boston researchers.
New studies of Egypt's mummies rest on government go-ahead
September 12, 2014 -- DUBAI - Imaging investigations of ancient Egypt's royal mummies may start again in the near future, but this depends on getting the all-important green light from the country's senior politicians, according to the head of the medical team that has conducted previous examinations.
Mich. researchers hope to revamp lung CT image processing
September 12, 2014 -- A new study at the University of Michigan aims to speed up image processing for low-dose CT lung cancer scans in the hopes of reducing reconstruction times to just a few minutes, which should result in lower radiation doses to patients.
CT contrast not tied to poor outcomes, even in at-risk patients
September 9, 2014 -- The use of intravenous contrast before CT imaging is safe for most patients, according to a large study published online on Tuesday in Radiology. Researchers from the Mayo Clinic in Rochester, MN, found no difference in complication rates between patients who received contrast and those who did not.
NLST: CT lung screening more effective for older smokers
September 8, 2014 -- A new analysis of data from the National Lung Screening Trial (NLST) has found that CT lung cancer screening is more effective for older smokers than younger ones. The study, published online Tuesday in the Annals of Internal Medicine, is sure to shape the roiling debate over whether Medicare should pay for CT lung screening.
Study finds CT lung cancer screening highly cost-effective
September 2, 2014 -- CT lung cancer screening is cost-effective in the Medicare-aged population, concludes a new study published in American Health and Drug Benefits that was tailored specifically to older individuals undergoing lung cancer screening with CT. Proponents of the exam hope it will add impetus to efforts to win Medicare reimbursement.
CAC best predicts heart disease in kidney patients
September 2, 2014 -- Coronary artery calcium (CAC) as calculated from CT scans was by far the best predictor of cardiovascular disease in individuals with chronic kidney disease, just as it is in the population at large, concludes a new study in the Journal of the American Society of Nephrology.
ACR cries foul as DNA test beats CTC to Medicare approval
August 28, 2014 -- The American College of Radiology (ACR) is crying foul after the U.S. Centers for Medicare and Medicaid Services recently approved a stool DNA test for colorectal cancer screening -- as reimbursement for CT colonography (CTC) continues to languish.
Segmentation technique supports coronary CAD
August 26, 2014 -- A new coronary artery segmentation and tracking method is showing promise for supporting computer-aided detection (CAD) schemes that can read coronary CT angiography scans to look for arteries blocked by both soft and calcified plaque, according to research published in Medical Physics.