断层超声显像诊断左肾静脉压迫综合征的意义

The significance of the related factors in diagnosis of left renal vein entrapment syndrome by tomographic ultrasound imaging

目的探讨断层超声显像(tomographic ultrasound imaging,TUI)诊断左肾静脉压迫综合征相关指标的意义。方法对70例左肾静脉压迫综合征患者(实验组)进行断层超声诊断并利用相关软件进行定量分析,得出相应的左肾静脉扩张段内径与狭窄段内径比值及肠系膜上动脉与腹主动脉之间的夹角,与对照组进行比较分析。结果应用二维超声技术快速显示占65%,应用TUI技术快速显示占100%。实验组肠系膜上动脉与腹主动脉之间的角度为(23.58°±3.29°),与对照组角度比差异有统计学意义(P<0.01);实验组内径比值为(4.02±0.73),与对照组内径比差异有统计学意义(P<0.01)。实验组角度与内径比值相关系数(r)为-0.277(P<0.05),表明实验组角度与内径比之间存在负相关,即肠系膜上动脉与腹主动脉之间的角度越小,左肾静脉内径比值越大。结论利用TUI测量左肾静脉内径与肠系膜上动脉与腹主动脉之间的角度对左肾静脉压迫综合征的诊断均有意义,并且优于二维超声。

Objective To explore the significance of related factors in diagnosis of left renal vein en- trapment syndrome by tomographic ultrasound imaging. Methods We randomly collected 70 patients with left renal vein entrapment syndrome and use ultrasound technology to image them, compute the corresponding ratio of LRV diameters of the distended to the narrowed portions and the aortomesenteric angle （ AMA, the angle be- tween the aorta and the superior mesenteric artery）, then make 70 randomly selected normal people as control group. Results The fast display rate was 65% by two dimensional ultrasound,which was 100% by TUI. The correlation coefficient between the AMA and the ratio of the inner diameter for patients was - 0. 277 （ P 〈 0. 05 ）. The inner diameter and the AMA are significantly related. The bigger the ratio of the inner diameter was, the bigger the AMA was. Conclusion Measuring the inner diameter ratio and the AMA is significant to diag- nose the left renal vein entrapment syndrome, which is better than two dimensional ultrasound.