Radiologists prefer optical colonoscopy over CTC
February 11, 2016 -- Citing the certainty provided by conventional optical colonoscopy results, a majority of radiologists would choose it over CT colonography (CTC) for their own colorectal cancer screening, according to the results of a small survey reported in the February American Journal of Roentgenology.
Smokers ineligible for screening have same lung cancer rate
February 10, 2016 -- Long-term smokers who are at high risk for lung cancer but don't qualify for CT screening under the strict guidelines of the National Lung Screening Trial nevertheless have the same rate of cancers as those who do qualify, concludes a study in the February Journal of the American College of Radiology.
Article blasts LNT theory of radiation harm
February 5, 2016 -- An article in the American Journal of Clinical Oncology calls for the abandonment of the linear no-threshold (LNT) model, which holds that even low levels of radiation -- similar to those used in medical imaging -- can be harmful.
Extracolonic findings on CTC are rare but often important
February 1, 2016 -- Extracolonic findings are relatively uncommon in CT colonography (CTC) screening, but the few that require follow-up tend to be highly significant to the patient's health, according to a new report in the American Journal of Roentgenology.
More former smokers should get CT lung screening
January 28, 2016 -- Low-dose CT lung cancer screening should be expanded to include smokers who gave up the habit long ago, concludes a new study published in the February issue of the Journal of Thoracic Oncology.
Algorithm corrects contrast enhancement artifacts in dual-source CTC
January 25, 2016 -- A new postprocessing technique for dual-source CT colonography (CTC) corrects for artifacts that mimic contrast enhancement created by fecal tagging materials. The algorithm boosts sensitivity and reduces false-positive detections significantly.
Colorectal cancer patients diagnosed younger than screening age
January 25, 2016 -- Many colorectal cancer patients are being diagnosed when they are younger than 50 years old, the age at which most guidelines say screening should begin, according to a new analysis of U.S. patients in Cancer. The findings raise questions about how -- and whether -- screening should be addressed in younger adults.
Societies issue imaging guidelines for chest pain
January 22, 2016 -- New guidelines for the appropriate use of diagnostic imaging for chest pain have been released by the American College of Cardiology, the American College of Radiology, and several other societies, according to a report published online January 22 in the Journal of the American College of Cardiology and the Journal of the American College of Radiology.
Study finds CT use has doubled for minor injuries
January 19, 2016 -- The use of CT for minor injuries has doubled in the past decade, according to a study of more than 8.5 million California patients in the Journal of Surgical Research. The increase may indicate that it's time to redouble efforts to ensure that radiation is used appropriately.
Emphysema-related COPD on CT signals higher malignancy risk
January 18, 2016 -- Individuals who have certain types of emphysema may also be at higher risk of cancer if they have suspicious nodules found on CT lung cancer screening scans, according to new research. The findings could help researchers better determine which suspicious nodules warrant further workup.