Coronary calcium CT scans predict mortality
July 7, 2015 -- A simple coronary calcium CT scan can be used to predict death in asymptomatic individuals for as long as 15 years after the scan, according to a new study of nearly 10,000 people, published in the July 7 issue of the Annals of Internal Medicine.
Does low-level radiation really cause cancer?
July 2, 2015 -- The scientific theory that links low levels of radiation to cancer incidence is deeply flawed and cannot be used as a model to predict excess cancer incidence, researchers argue in a paper published in Technology in Cancer Research and Treatment.
CT radiation dose levels in clinical trial surprise researchers
June 29, 2015 -- A group of researchers studying the use of CT for kidney stones were surprised by the radiation dose levels they discovered in their multicenter clinical study. Not only were many doses too high, they also varied widely between centers, concludes a research letter published June 29 in JAMA Internal Medicine.
Group creates 3D printed heart with CT, echo data
June 29, 2015 -- In what they are calling a major advance, researchers from Michigan have created a 3D model of a human heart using data from two separate cardiac imaging techniques: CT and echocardiography. They believe that such hybrid 3D models will be more accurate than those created from just one imaging modality.
CT lung CAD may require adjustment from radiologists
June 26, 2015 -- Computer-aided detection (CAD) for CT lung exams will be essential in the coming era of population-based lung cancer screening. But radiologists may have to change their way of reading studies to reap its benefits, according to a recent talk by Dr. Geoffrey Rubin from Duke University.
Nonsolid nodules can be safely managed with CT
June 23, 2015 -- Patients with nonsolid lung nodules can be safely managed noninvasively using low-dose CT, according to an analysis published online June 23 in Radiology of more than 57,000 lung cancer screening patients.
Are imaging sites ready for new Joint Commission rules?
June 22, 2015 -- On July 1, a new era of intense scrutiny and documentation will arrive for CT and other imaging modalities, thanks to new Joint Commission accreditation requirements that become effective on that date. Unfortunately, most radiology departments aren't remotely ready to fulfill the requirements, according to a talk at the International Symposium on Multidetector-Row CT.
Lung disease goes undiagnosed in many smokers
June 22, 2015 -- More than half of long-term smokers who pass lung-function tests are actually living with lung disease that remains undiagnosed, according to a study published online Monday in JAMA Internal Medicine.
PACS replaces planes for image transfer in Arctic
June 17, 2015 -- A remote spot in an eastern Arctic region of Canada that is closer to Greenland than Toronto has received its first CT scanner, as well as a PACS and satellite link to go with it. The new technologies are revolutionizing healthcare in the region, as images no longer need to be transported by cargo plane to the southern part of the country.
USPSTF ponders addition of new heart risk factors
June 12, 2015 -- The U.S. Preventive Services Task Force (USPSTF) has drafted a research plan for assessing cardiovascular disease risk, and it is accepting public comments on the idea of adding nontraditional measures such as coronary artery calcium into standard cardiovascular risk factor assessment for asymptomatic individuals.