Satoh N, Togami I, Murakami K, Kitagawa T, Kimoto S, Hiraki Y, Uno S, Kumon H, Ohmori H
Department of Radiology, Okayama University.
Nihon Igaku Hoshasen Gakkai Zasshi. 1991 Nov 25;51(11):1346-51.
Dynamic CT scans of the kidney were conducted in 57 persons with varied renal function. The results of dynamic CT were used to obtain time-density curves for renal cortex, medulla and aorta. Various parameters were calculated from these time-density curves. Among them, CA ratio, the ratio of the area under the renal cortex curve to the area under the aortic curve, showed the best correlation with creatinine clearance. With these parameters, dynamic CT studies are believed to be useful in evaluating renal function.
对57名肾功能各异的患者进行了肾脏动态CT扫描。利用动态CT的结果获取肾皮质、髓质和主动脉的时间-密度曲线。从这些时间-密度曲线计算出各种参数。其中，CA比值（肾皮质曲线下面积与主动脉曲线下面积之比）与肌酐清除率的相关性最佳。有了这些参数，动态CT研究被认为对评估肾功能有用。
