[Three-dimensional CT angiography of the hepatic artery with multislice CT: differences in image quality according to
M Tanikake1, T Shimizu, S Yoshikawa
1Department of Radiology, Osaka Medical College.
Abstract:
Three-dimensional CT angiography was reconstructed from the hepatic artery using multislice CT, and the effect of pitch during scanning on the quality of obtained images was examined. We randomly divided patients into two groups, with images of one group scanned at helical pitch 3 and images of the other at helical pitch 5.5. CT angiography was reconstructed by a volume-rendering technique. Evaluation was done visually, taking the sharpness of images of branches of the hepatic artery as a measure. Three-dimensional imaging scanned at pitch 3 tended to be better than that scanned at pitch 5.5.
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