CARS report: Fuzzy theory yields sharper CTA images June 27, 2008 -- BARCELONA - Coronary CT angiography isn't as easy to perform as it could be, according to Chunliang Wang, who discussed the problem of hidden coronary arteries and introduced a novel segmentation method that might make them easier to examine at the 2008 Computer Assisted Radiology and Surgery (CARS) meeting.
CARS report: CAD prompts range of behaviors in readers June 26, 2008 -- BARCELONA - How computer-aided detection (CAD) software works in theory is one thing, and how it functions in practice is another, as radiologists who use CAD have come to appreciate. But the ways in which readers react to CAD prompts, a subject that has received scant attention, has important implications for both CAD design and reader training.
Radiographers perform VC with CAD -- and controversy June 24, 2008 -- A new study from London put radiographers in charge of reading virtual colonoscopy (VC) data, with their performance monitored with computer-aided detection as a second reader. The study raises the question of whether it's inappropriate -- or even dangerous -- to allow nonradiologists to screen with VC.
Swiss study links prostate radiotherapy to higher colon cancer risk June 24, 2008 -- Prostate cancer patients who receive external-beam radiation therapy had a higher risk of developing colon cancer during their lifetime, but the overall risk may be declining with new technology, Swiss researchers report in a study published in the International Journal of Cancer.
French researchers develop handheld probe for SLN detection June 17, 2008 -- NEW ORLEANS - Researchers from France have developed a handheld gamma camera to perform lymphoscintigraphy for sentinel lymph node (SLN) localization in breast cancer. They presented details of the device and results of a prospective clinical study comparing it with a conventional gamma camera during the 2008 SNM annual meeting.
Global radiation dose higher than necessary June 3, 2008 -- Initial results of a multinational research study on x-ray quality control and patient dose conducted by the International Atomic Energy Agency (IAEA) reveal that up to 50% of x-ray exams performed in less developed nations are of substandard quality. What's more, many patients in these countries are being exposed to unnecessary radiation doses due to the need to repeat procedures.
DW-MRI shows value in RTP for head and neck cancer June 3, 2008 -- A pilot study presented at the 2008 American Association for Cancer Research (AACR) meeting is the first to demonstrate the value of diffusion-weighted MRI for nodal staging in head and neck squamous cell carcinoma, according to investigators from Belgium.
ASCO news: Selenium use does not interfere with radiotherapy June 2, 2008 -- CHICAGO - German researchers reported that use of the nutritional supplement selenium in women who are diagnosed with gynecological cancers does not appear to compromise the effectiveness of radiation therapy. The findings could be good news for patients taking selenium for its antioxidant properties.