Advanced visualization firm Medicsight of London is highlighting clinical results presented this month from a paper on its Medicsight ColonCAD computer-aided detection (CAD) technology.
According to a study presented at the European Society of Gastrointestinal and Abdominal Radiology (ESGAR) meeting in Istanbul, Turkey, 304 patients underwent virtual colonoscopy as part of routine clinical care. Exams were read by two trained radiographers, with CAD used as a "second reader." Their results were then compared to those of an experienced radiologist, supplemented by colonoscopy findings when available.
The radiographers assisted by CAD detected 100% (17/17) of cancers, 72% (21/29) of polyps larger than 10 mm, and 67% (42/63) of polyps 6 to 9 mm, according to the study. On retrospective analysis, CAD detected 60% of polyps missed by radiographers; had the radiographers accepted these correct CAD annotations, their detection rates would have been 83% and 89% for medium and large polyps, respectively, the company said.
Medicsight said the results indicate that CAD could be accurate in a user group (radiographers) that will play a role in future global colorectal cancer screening programs.
Related Reading
Medicsight parent trims net loss, March 18, 2008
Medicsight, Toshiba ink deal, February 14, 2008
Medicsight, Visage Imaging to collaborate, November 25, 2007
Road to RSNA, CAD, Medicsight, November 1, 2007
Medicsight, Barco sign global pact, July 23, 2007
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![Axial images from unenhanced calcium score cardiac CT (left) and curved planar reformation images from CT angiography (right) show that higher long-term exposure to air pollution is associated with greater coronary artery calcium and more obstructive coronary artery disease (CAD). Top row: Images in a 68-year-old male patient with higher 10-year mean ambient air pollution exposure (7.9 μg/m3 for particulate matter measuring ≤2.5 μm in diameter [PM2.5] and 17.4 parts per billion [ppb] for NO2) with extensive CAD (coronary artery calcium score [CACS] >1,000 and obstructive CAD [≥70% diameter stenosis]). Bottom row: Images in a 57-year-old female patient with lower 10-year mean ambient air pollution exposure (6.3 μg/m3 for PM2.5 and 4.6 ppb for NO2) with no CAD (CACS = 0 and no obstructive stenosis).](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/06/hanneman.r6SMLzkezo.png?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
