Kathrein H
Klinik für Innere Medizin, Universität Innsbruck.
Fortschr Med. 1993 Jun 30;111(18):313-5.
Duplex sonography permits non-invasive evaluation of both the anatomy and function (flow volume) of the AV-fistula in patients on hemodialysis in a single session. It should be the first imaging procedure to be applied when access to the circulation presents a problem. Comparisons with angiography and surgical reports confirm the adequate sensitivity and specificity of the procedure. Diagnostic problems may occur with ambiguous vascular anatomy, stenoses affecting the anastomosis or central veins. Duplex sonography makes the establishment of the indication for angiography or therapy much more accurate.
双功超声检查可在一次检查中对血液透析患者的动静脉内瘘的解剖结构和功能（血流量）进行无创评估。当建立血管通路出现问题时，它应是首先应用的成像检查方法。与血管造影和手术报告的对比证实了该检查方法具有足够的敏感性和特异性。对于血管解剖结构不明确、影响吻合口或中心静脉的狭窄，可能会出现诊断问题。双功超声检查能使血管造影或治疗指征的确定更加准确。
