320排CT血管成像诊断胡桃夹综合征的影像评价  

Image evaluation of 320 multi-slice spiral computed tomography angiography in the diagnosis of nutcracker syndrome

作　　者：陈亮[1] 吴红珍[1] 陈立鹏[1] 刘文锋[1] 陈明旺[1] 魏新华[1] 

机构地区：[1]广州市第一人民医院放射科,广东广州510180

出　　处：《实用放射学杂志》2014年第4期635-637,共3页Journal of Practical Radiology

摘　　要：目的：总结320排螺旋CT动态容积扫描胡桃夹综合征的影像特点,为临床提供诊断依据。方法使用320排螺旋CT,回顾性分析15例明确诊断为胡桃夹综合征患者的临床及 CTA 资料。测量肠系膜上动脉与腹主动脉夹角（α）的大小,左肾静脉狭窄段前后径（a）与左肾静脉近肾侧扩张段前后径（b）并计算比值,探讨其诊断本病的参考范围。结果15例均为α值变小所致,范围为15.5＆#176;≤α≤27.6＆#176;；左肾静脉狭窄段前后径（a）与左肾静脉近肾侧扩张段前后径（b）之比的范围为0.22≤a/b ≤0.35。4例伴有左肾增大,2例显示侧支循环,1例伴有十二指肠淤滞症。结论胡桃夹综合征在CTA图像上较具有特征性；CTA可以无创、快速、全面地显示左肾静脉及周围组织结构的解剖关系,为临床诊断提供重要依据。Objective To summarize the image features of nutcracker syndrome （NCS）on 320 multi-slice spiral computed tomo-graphy angiography （CTA）.Methods The clinical and CTA data of 1 5 cases with NCS were analyzed retrospectively.The angle（α） between superior mesenteric artery （SMA）and abdominal aorta（AA）was measured.The ratio（a/b）of the diameters of the most narrow and the most wide at the hilus of left renal vein （LRV）was calculated.Results The angel（α）of 1 5 cases were ranged from 15.5＆#176;to 27.6＆#176;.The range of a/b was from 0.22 to 0.35.Left renal enlargement were observed on four cases.Collateral circulation were detected on two cases.Duodenal stasis was detected on one case.Conclusion CTA findings of NCS is characteristic,which can noninvasively,rapidly and comprehensively display the surrounding anatomy of LRV.It is helpful in clinical diagnosis.

关 键 词：胡桃夹综合征 血管成像 计算机体层成像 肠系膜上动脉 左肾静脉 

分 类 号：R692[医药卫生—泌尿科学] R814.43[医药卫生—外科学]