Multi-slice spiral CT angiography of the posterior nutcracker syndrome

VernacularTitle:多层螺旋CT血管造影诊断后胡桃夹综合征
Author: Long ZHAO ; Heshui SHI ; Xi LIU ; Ping HAN ; Jie YU
Publication Type:Journal Article
Keywords: Nutcracker syndrome; Tomography; X-ray computed; Angiography
From: Chinese Journal of Medical Imaging Technology 2009;25(10):1817-1820
CountryChina
Language:Chinese
Abstract: Objective To assess the value of multi-slice spiral CT angiography (MSCTA) in diagnosis of posterior nutcracker syndrome (NCS). Methods MSCTA of 15 patients clinically diagnosed as posterior NCS (patient group) and 50 subjects with normal renal vessels (control group) were retrospectively analyzed. The anatomy, course and relationship to the adjacent structure of left renal vein (LRV) and its branches were observed. The anteroposterior diameter (d1) and cross areas (s1) of the angle of control group and posterior abdominal artery (AA), the anteroposterior diameter (d2) and cross areas (s2) at the largest lumen near the renal hilar were measured and the ratio of s2/s1 and d2/ d1 were calculated.Results All LRVs posterior AA of patient group were compressed and narrowing with dilating apparently near the renal hilar. The difference of d2 was not significant (P＞0.05), but of other values were significant (P＜0.05).Conclusion MSCTA can show anatomy and three-dimentional trend clearly of LRV for posterior NCS, and evaluate the extent of narrow and dilating lumen accurately with cross areas measuring.