RADIOLOGY NEWS
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. Read More
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. Read More
When MRI won't work, MDCT can help differentiate breast lesions, study suggests
June 19, 2008 -- MDCT can be a helpful tool when mammographic or sonographic findings are unclear and there is no palpable lesion, as well as in cases of suspected lesions, particularly in women for whom MRI isn't feasible, according to a study published in the American Journal of Roentgenology. Read More
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. Read More
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. Read More
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. Read More
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. Read More
VC radiation dose holds steady overall despite dose modulation
June 2, 2008 -- The radiation dose from virtual colonoscopy (VC) hasn't dropped much since the introduction of dose modulation software on CT scanners, largely because VC providers use it only half the time, according to a new study from the Netherlands, which also demonstrated significantly lower doses for VC screening protocols compared to daily practice protocols. Read More
MRI outperforms MDCT in endoleak detection
May 30, 2008 -- Multidetector-row CT may soon find itself in competition with MRI for the imaging of endoleaks after endovascular repair (EVAR) of abdominal aortic aneurysms. Researchers found that MRI combined with a high relaxivity contrast agent had "significantly high sensitivity" for endoleak detection after EVAR when compared with MDCT. Read More
Speech recognition shrinks report turnaround time
May 29, 2008 -- Speech recognition technology showed its worth in a study from Helsinki University Central Hospital in Finland, where report turnaround time was reduced by more than 80%. Study results were presented at the 2008 Society for Imaging Informatics in Medicine (SIIM) meeting in Seattle. Read More
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