Satoh N, Kimoto S, Hiraki Y
Department of Radiology, Okayama University Medical School, Japan.
Acta Med Okayama. 1991 Jun;45(3):187-93. doi: 10.18926/AMO/32211.
Dynamic CT scans were conducted on 94 persons who had been randomly selected among the patients and the volunteers. The test results were used to obtain the time-density curve. A part of the subjects (20 cases) underwent the renogram examination for the comparative studies. The cortico-aortic (CA) ratio derived from the time-density curve demonstrated good correlation between the dynamic CT and the renal function (r = 0.68). When the dynamic CT studies and the renogram were compared, the vascular phase of the renogram showed strong correlation with CA ratio. Consequently the dynamic CT study the CA ratio was believed to demonstrate the renal function.
对从患者和志愿者中随机选取的94人进行了动态CT扫描。测试结果用于获取时间-密度曲线。部分受试者（20例）接受了肾图检查以进行对比研究。从时间-密度曲线得出的皮质-主动脉（CA）比值显示动态CT与肾功能之间具有良好的相关性（r = 0.68）。当比较动态CT研究和肾图时，肾图的血管期与CA比值显示出很强的相关性。因此，动态CT研究中的CA比值被认为可反映肾功能。
