Landwehr P, Tschammler A, Schaefer R M, Lackner K
Institut für Röntgendiagnostik, Universität Würzburg.
Rofo. 1990 Aug;153(2):185-91. doi: 10.1055/s-2008-1033359.
Two hundred and sixty-four shunt segments in 43 patients with 66 dialysis shunts were examined by colour-coded duplex sonography and the results compared with DSA. Sonography demonstrated shunt stenoses with an accuracy of 93.9% (sensitivity 90.6%, specificity 95.8%). Only central venous stenoses were shown better by DSA than by sonography. Sonography showed occlusions with a sensitivity of 83.3% and a specificity of 100%. All aneurysms demonstrated by DSA were correctly identified by sonography. In 18 patients PTA of the shunt was performed. The result of treatment could be quantified by measuring flow by means of sonography. The study confirmed the value of duplex sonography as a noninvasive diagnostic method for investigating insufficient dialysis shunts.
对43例患者的66个透析分流器中的264个分流节段进行了彩色编码双功超声检查，并将结果与数字减影血管造影（DSA）进行比较。超声检查显示分流狭窄的准确率为93.9%（敏感性90.6%，特异性95.8%）。只有中心静脉狭窄DSA显示比超声检查更好。超声检查显示闭塞的敏感性为83.3%，特异性为100%。DSA显示的所有动脉瘤均被超声检查正确识别。对18例患者进行了分流器经皮腔内血管成形术（PTA）。治疗结果可通过超声测量血流来量化。该研究证实了双功超声作为一种用于研究透析分流不足的无创诊断方法的价值。
