急性和慢性肾功能衰竭急性发作的彩色多普勒诊断

目的：应用CDFI诊断急性肾功能衰竭和慢性肾功能衰竭急性发作。方法：应用CDFI对ARF和CRF急性发作患者及一组正常人进行肾大小，肾皮质厚度及肾血流动力学测定。结果：（1）ARF肾脏体积明显增大，CRF急性发作肾脏体积明显缩小，二者与正常对照组比差异显著（P＜0．01）。（2）ARF肾皮质增厚，CRF急性发作肾皮质菲薄或完全显示不清，与正常组相比差异显著（P＜0．05）。（3）ARF肾Vmax与正常组相比差异不明显，CRF急性发作RI值与正常组差异不明显，但ARF与CRF急性发作两组相比差异显著（P＜0．01）。结论：CDFI可及时诊断病因，判断病情，了解肾内血流情况，为ARF和CRF急性发作的诊断及治疗，判断愈合开辟了新的途径。

A Diagnosis of ARF and Acute Seizure of CRF with Color Doppler Flow Imaging

Objective To evaluate CDFI in diagnosing acute renal failure (ARF) and acute seizure of chronic renal failure (CRF). Methods 2 groups of patients (ARF group and CRF group ) and a normal group(control group) were measured. The size of kidneys and cortex thickness and maximum velocity(Vmax) and resistance index (RI) of renal arteries were analysed. Results Compared with control group, kidneys were bigger in ARF group and smaller in CRF group. Renal cortex was thicker in ARF group while became thinner or could hardly be displayed in CRF group. There were no significant difference of Vmax between ARF group and control group, nor was RI between CRF group and control group. But there were significant differences of Vmax and RI between ARF group and CRF group. Conclusion CDFI is valuable to differentiate ARF from acute seizure of CRF.