后胡桃夹综合征的多层螺旋CT血管造影诊断

目的研究与探讨使用多层螺旋CT血管造影(MSCTA)对后胡桃夹综合征进行诊断的方法。方法选择20例(病变组)已确诊的PNCS患者的肾血管MSCTA与60例(正常组)正常人进行D1、D2、D2/D1、S1、S2、S1/S2比较分析。结果病变组与正常组MSCATC比对显示,病变组LRV受压狭窄,回流受阻,近肾端管腔明显扩张。测量结果指标显示,两组在D1、D2/D1、S1、S2、S1/S2指标上均有显著性差异,差异有统计学意义(P<0.05)。结论使用MSCTA对PNCS进行诊断,能明显观测LRV的形态及其立体走向,测量截面积准确,能准确评估LRV受压程度,是一种新型的、无创的PNCS诊断方法。

Diagnosis of Posterior Nutcracker Syndrome by Multislice Spiral CT Angiography

Objective To explore the diagnostic value of multi-slice spiral CT angiography （MSCTA） in posterior nutcracker syndrome. Methods MSCTA of 20 patients clinically diagnosed as posterior nutcracker syndrome （patient group） and 60 subjects with normal renal vessels （normal group） were compared in D1, D2, D2/D1, S1,S2, S1/S2. Results All LRVs of patient group were compressed and obstructed, dilating apparently near the renal hilar. The difference of D1, D2/D1, S1, S2, S1/S2 in both groups were significant （P〈0.05） . Conclusion MSCITA can clearly show morphology and three-dimensional trend of LRV for PNCS and accurately measure the cross-sectional areas and the degree of LRV. It is a new and non-invasive method of diagnosing PNCS.