Assessment of intra-abdominal fat in patients with prostate cancer using X-ray computed tomography images

To assess relationships between intra-abdominal fat and prostate cancer, intra-abdominal fat distribution was investigated of prostate cancer of 75 examples and various cases of 508 examples with X-ray CT data. On the other hand, in Japanese, visceral fat obesity indicating intra-abdominal fat area at the navel was =>100cm super(2). The results showed that 81.3%(n=75)of prostate cancer exhibits visceral fat obesity. A significant finding was that intraabdominal fat area steeply decreased near the pubic symphysis in prostate cancer. This unique pattern was seen in 90.7%(n=75)of prostate cancer patients, markedly higher than in patients with gastric(12.2%, n=49)or colon cancer(36.0%, n=314)and other cancers except for prostate cancer(34.1%, n=508).The relationship between fat and prostate cancer is hard to explain, but some relationship appears to exist between prostate cancer and intra- abdominal fat distribution. To make use of these results for intra-abdominal fat distribution, a computer-aided diagnosis(CAD)system for detecting prostate cancer according to the presence of a unique pattern offers potential as a method for detection of prostate cancer or warning of affection.