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Colour Ultrasonographic Diagnosis of Left Renal Vein Entrapment Syndrome

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Author:
No author available
Journal Title:
JOURNAL OF CHINESE PHYSICIAN
Issue:
11
DOI:
10.3760/cma.j.issn.1008-1372.2001.11.005
Key Word:
超声诊断;左肾静脉受压综合征

Abstract: 目的探讨彩超诊断儿童左肾静脉受压综合征(LRVES)的主要指标.方法经彩超、尿液显微镜检及尿Ca/Cr比值测定确诊为LRVES的患儿82例,作为对照组的健康儿童40例.仰卧位观察左肾静脉(LRV)有无受压变窄及受压后扩张现象,检出LRV在腹主动脉(AO)左侧方内径a与前方内径b的比值,应用彩色多普勒血流显像(CDFI)测出AO左侧方LRV的血流速度,并同时观察肠系膜上动脉(SMA)与AO之间夹角θ;然后直立位20min后再测a/b比值.结果 LRVES组LRV受压后血管变窄,a/b大于3,直立位20min后a/b大于4;且LRV的血流速度减慢,θ角变小,与健康对照组相比较具有统计学意义.结论超声诊断LRVES最主要的指标是观察LRV受压前后的a/b比值(仰卧位及直立位20min后);其次是LRV受压前的血流速度,再次是SMA与AO之间的夹角θ.

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