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首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Value of duplex Doppler ultrasonography for the evaluation of dysfunctional hemodialysis access arteriovenous fistulas prior to endovascular interventions
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Value of duplex Doppler ultrasonography for the evaluation of dysfunctional hemodialysis access arteriovenous fistulas prior to endovascular interventions

机译：双相多普勒超声的价值在血管内干预前评估功能障碍血液透析接入动静脉瘘的价值

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Abstract Purpose To demonstrate accuracy of duplex Doppler ultrasonography (DUS) for the evaluation of native‐vein arteriovenous fistula (AVF) dysfunction in end‐stage renal disease patients. Methods This retrospective study included 60 patients with dysfunctioning native‐vein AVF evaluated with DUS and digital subtraction angiography (DSA) whose results were compared for detection, identification, and localization of AVF lesions. We calculated sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy of DUS and evaluated the agreement between DUS and DSA by the Cohen's kappa coefficient (κ). Results DUS identified correctly 123 of 130 lesions (sensitivity 94.6%, specificity 97.5%, PPV 98.4%, NPV 92%, accuracy of 95.7%). DUS localized correctly 123 of 130 lesions (sensitivity 94.6%, specificity 98.4%, PPV 98.4%, NPV 94.6%, accuracy 96.4%). The κ value was 0.9120 for detection of all lesions (almost perfect agreement). Conclusion DUS is a reliable method for the initial evaluation of dysfunctional AVFs, with high sensitivity for detecting and correctly localizing circuit problems.
机译：摘要目的，证明双相多普勒超声（DUS）对末期肾病患者天然静脉动静脉瘘（AVF）功能障碍评价的准确性。方法本次回顾性研究包括使用DUS和数字减法血管造影（DSA）评估的20例功能性静脉AVF患者，其结果被比较了AVF病变的检测，鉴定和定位。我们计算了DUS的敏感性，特异性，阳性预测值（PPV），阴性预测值（NPV）和准确性，并通过COHEN的Kappa系数（κ）评估了DUS和DSA之间的协议。结果DUS鉴定为130个病变的123个（敏感性94.6％，特异性97.5％，PPV 98.4％，NPV 92％，准确度为95.7％）。 DUS定位为130个病变的123个（敏感性94.6％，特异性98.4％，PPV 98.4％，NPV 94.6％，精度为96.4％）。 κ值为0.9120，用于检测所有病变（几乎完美的协议）。结论DUS是一种可靠的方法，用于初步评估功能障碍AVF，具有高灵敏度，用于检测和正确定位电路问题。

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