"At present, CT colonography examinations are acquired in two patient positions: supine and prone," study author Janne Nappi, PhD, told AuntMinnie.com by email. "In this study, the feasibility of computer-aided supine-only reading was investigated in full cathartic CTC by using a computer-aided detection system as a second reader on 266 multicenter CTC cases."
The cases came from a multicenter CTC trial for patients at average or high risk for colorectal cancer, in which the patients were scanned after cathartic bowel preparation. Sensitivities ranged from 90% to 91%.
"The results indicate that computer-aided supine-only reading yields as high a performance as conventional supine-prone CTC reading," Nappi said. "Supine-only reading of CTC could reduce the radiation dose of CTC examinations by up to 50%."
