摘要
目的探讨多层螺旋CT血管造影(MSCTA)对后胡桃夹综合征的诊断价值。方法回顾性分析15例经临床和相关检查确诊后的NCS患者(病变组)和50名正常人肾血管(对照组)的MSCTA影像资料。观察左肾静脉(LRV)的形态、走行及空间结构。测量对照组夹角处和病变组腹主动脉后方LRV前后径(d1)截面积(s1);近肾端管腔最宽处前后径(d2)及截面积(s2),并计算s2/s1及d2/d1的比值,进行统计学分析。结果病变组LRV受压变窄,近肾端管腔明显扩张。对照组LRV走行于腹主动脉和肠系膜上动脉之间,管腔大致均匀。两组比较d1、s1、s2、d2/d1、s2/s1差异有统计学意义(P<0.05),d2差异无统计学意义(P>0.05)。结论MSCTA可清楚地显示后NCS的LRV形态及立体走向,利用重建功能测量截面积能准确、直观地评估LRV扩张及变窄的程度,对临床诊断、治疗具有重要的应用价值。
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/ dl 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.
出处
《中国医学影像技术》
CSCD
北大核心
2009年第10期1817-1820,共4页
Chinese Journal of Medical Imaging Technology
