[搏动血流指数（PFI）在诊断功能异常的肾移植中的应用]
[The pulsatile flow index (PFI) in the diagnosis of dysfunctional kidney transplants].
作者信息
Sievers K W, Albrecht K H, Kaude J V, Wegener A, Annweiler H
机构信息
Röntgendiagnostisches Zentralinstitut, Universitätsklinikum Essen.
出版信息
Rofo. 1990 Dec;153(6):698-701. doi: 10.1055/s-2008-1033467.
In 61 patients (167 examinations) the pulsatile flow index (PFI) was used to diagnose the cause of renal transplant dysfunction. The results were correlated with histology and clinical course and outcome, angiography or quantitative radionuclide renography. Renal transplant rejection was diagnosed by PFI with a sensitivity of 85%. The specificity was 81% and the diagnostic accuracy 83%. The positive predictive value was found to be 76%, whereas the negative predictive value was 89%. In presence of acute tubular necrosis (ATN) the PFI was normal in 89% of examinations and therefore distinguishable from acute rejection.
在61例患者（167次检查）中，使用搏动血流指数（PFI）来诊断肾移植功能障碍的原因。结果与组织学、临床病程及转归、血管造影或定量放射性核素肾造影进行了相关性分析。通过PFI诊断肾移植排斥反应的敏感性为85%。特异性为81%，诊断准确性为83%。阳性预测值为76%，而阴性预测值为89%。在急性肾小管坏死（ATN）存在的情况下，89%的检查中PFI正常，因此可与急性排斥反应相鉴别。
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