CT Digital Community
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.
CT, MRI use declined in ED after 2007
August 20, 2014 -- After a period of rapid increase from 1993 to 2007, use of medical imaging in the emergency department (ED) declined, mostly because of decreased utilization of CT and MRI, according to a new study published this month in the American Journal of Roentgenology.
Decade of lung CAD brings insight, but little daily use
August 19, 2014 -- Computer-aided detection (CAD) is known to boost radiologist performance in the detection of lung nodules, and radiologists certainly need the help. But despite a decade of fine-tuning and some powerful new capabilities, CAD systems haven't found a place in daily practice at most imaging facilities
Study shows combined thoracic CT use has dropped
August 14, 2014 -- Combined CT scans of the thorax -- which Medicare has been keeping an eye on -- aren't being overused after all. In fact, use of the combined scans is low and falling over time, according to a new study in the Journal of the American College of Radiology.
Interventional radiologists need to follow shielding protocols
August 13, 2014 -- Patients must be protected from unnecessary radiation exposure, but what about radiologists who perform interventional exams, particularly CT-guided procedures? German researchers found that radiologists have a low risk of overexposure -- if appropriate precautions are taken.
Circulation: Little radiation risk seen in cardiac scans
August 11, 2014 -- A lack of demonstrated harms combined with significant recent dose reductions have led at least one group of cardiovascular imaging specialists to worry less about the risks of a heart scan and more about the well-being of the patient, according to a new review article in Circulation.
Automated CT tool reveals pulmonary hypertension
August 8, 2014 -- In a new study that used computer-aided analysis, the presence of low normal lung tissue volume correlated with pulmonary arterial hypertension at 3D CT. The technique could offer a more accessible and less invasive diagnostic test than right heart catheterization, according to researchers from Japan.
Do homework before plugging in CT iterative reconstruction
August 6, 2014 -- Implementing iterative reconstruction on your CT scanner is more than just turning the thing on: You need a careful stepwise approach to get the most out of the radiation dose reduction technology, according to Dr. Jeffrey Mendel. In fact, a full review of your institution's CT protocols could be in order.
CT shows Egyptian heart disease hasn't changed in millennia
August 4, 2014 -- CT scans of coronary artery calcium in modern Egyptians revealed that they had patterns of atherosclerosis nearly identical to those of ancient Egyptian mummies -- right down to the affected anatomy, according to a new study in Global Heart.
Imaging exams guided treatment after Boston Marathon bombing
July 30, 2014 -- Medical imaging exams such as x-ray and CT played a key role in managing patients who arrived in the minutes and hours after the Boston Marathon bombing last year, according to a study in the August issue of the American Journal of Roentgenology.
CT lung screening participants not bothered by false positives
July 25, 2014 -- Participants in the massive National Lung Screening Trial weren't troubled by false-positive initial results suggesting they might have cancer -- possibly because they had been well-prepared in advance for such alarms, according to a report published on Friday in Cancer.
Ohio hospital slashes CT radiation dose -- and cancer risk
July 16, 2014 -- By changing its scanning protocols, an Ohio hospital was able to cut by more than half the number of radiation-induced cancers that would have occurred following CT exams. The finding could alter the debate over the risks of medical radiation, according to a study in the July issue of the Journal of the American College of Radiology.
Boston hospital adjusts operations after marathon bombing
July 15, 2014 -- In a paper published online July 15 in Radiology, staff from Brigham and Women's Hospital details the hospital's response to the Boston Marathon bombing and how it has improved some operations and procedures to better handle emergency situations.
Get to know referring physicians to meet their imaging needs
July 14, 2014 -- If you're a radiologist, you know that referring clinicians are your customers, and it's important to keep them happy. What do your referring physicians really want from their radiology reports and interactions with the radiology department? Just ask them, according to researchers from Duke University.
Reducing CT malpractice risk: Simple, but not easy?
July 11, 2014 -- Malpractice risk is part of practicing medicine, and although radiologists are less likely than most physicians to be hit with malpractice claims, radiologists still have a 50% likelihood of being sued by the time they turn 60.
Automated algorithms help spot change in serial CT exams
July 7, 2014 -- Most PACS vendors don't include automatic deformable image registration algorithms in their workstation software. But they should, as these can sharply reduce the time it takes for radiologists to match lung nodule locations on serial lung CT scans, according to researchers from Stony Brook Medicine.
Nodule size matters in Italian CT lung cancer screening study
June 26, 2014 -- Italian researchers believe they have struck a good balance in CT lung cancer screening by following up suspicious nodules at a slightly larger size threshold than that used in previous studies. By only following up nodules 5 mm and larger rather than 4 mm, they achieved good sensitivity with fewer false positives, according to a new study in the Journal of Thoracic Oncology.
Lung cancer screening of seniors: Should CMS regulate?
June 24, 2014 -- A just-published proposal in the Annals of Internal Medicine seeks to balance the benefits and harms of CT lung cancer screening by limiting the screening of Medicare beneficiaries to lung cancer screening centers that would be accredited based on still-evolving society-based guidelines.
New knowledge changes use of CT in guiding stroke treatment
June 23, 2014 -- Intravenous tissue plasminogen activator works better and is harmful to fewer patients than most doctors think, and, in any case, stroke treatment shouldn't be denied just because CT perfusion says the ischemic area is too large, according to a presentation earlier this month at the International Symposium on Multidetector-Row CT.
ISCT's Rubin issues challenge to image processing firms
June 20, 2014 -- Advances in image processing have given radiologists new tools to find the abnormalities they're looking for. But Dr. Geoffrey Rubin believes that radiologists need better tools -- and quickly -- before they drown in a flood of data being produced by the new generation of CT scanners.
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