主动脉后型左肾静脉解剖变异的多排CT表现及临床意义
Manifestation and clinical significance of the anatomic variations of retroaortic left renal vein with multi-detector CT
刘小琨 1赵小虎 2杨红兵 3吴云3
作者信息
- 1. 同济大学附属同济医院医学影像科,上海200065;上海市嘉定区南翔医院放射科,上海201802
- 2. 同济大学附属同济医院医学影像科,上海200065
- 3. 上海市嘉定区南翔医院放射科,上海201802
- 折叠
摘要
目的 采用16排MDCT评价主动脉后型左肾静脉解剖变异的类型及其临床意义.方法 回顾性分析960例受检者腹部增强CT影像资料,于动脉期和静脉期观察左肾静脉的解剖结构,采用MPR、MIP和VR等重建技术,分析主动脉后型左肾静脉解剖变异病例并进行分类.结果 主动脉后型左肾静脉变异共44例,发生率为4.58％(44/960).男女性主动脉后型左肾静脉解剖变异发生率的差异无统计学意义(x2 =0.923,P＞0.05).根据左肾静脉的数量及空间走行表现将主动脉后型左肾静脉分成3型,其中Ⅰ型(完全主动脉后左肾静脉)12例,包括ⅠA型5例,ⅠB型7例;Ⅱ型(环主动脉左肾静脉)26例,包括ⅡA型20例,ⅡB型4例,ⅡC型2例;Ⅲ型(异常回流分支)6例.结论 MDCT可用于评价主动脉后型左肾静脉解剖变异,对诊断左肾静脉相关疾病和指导肾脏手术、减少手术并发症具有重要价值.
Abstract
Objective To assess the manifestation and clinical significance of anatomic variations of retroaortic left renal vein with MDCT.Methods Abdominal contrast enhanced MDCT data of 960 patients were analyzed retrospectively.The anatomy of left renal veins on MDCT arterial and venous phase were observed.Three kinds of post-processing reconstruction methods including MPR,MIP and VR were used for analysis.The anatomic variations of retroaortic left renal vein were analyzed and discussed according to the category.Results Forty-four cases (44/960,4.58％) with variations of retroaortic left renal vein were found.The difference of variation incidence of retroaortic left renal vein was not significant statistically between male and female (x2 =0.923,P＞0.05).Forty-four cases were classified into three types,including type Ⅰ (completely retroaortic left renal vein) in 12 cases,type Ⅱ (circumaortic left renal vein) in 26 cases and type Ⅲ (abnormal return branch) in 6 cases.In these patients,the amount of category Ⅰ A,Ⅰ B,Ⅱ A,Ⅱ B and Ⅱ C was 5,7,20,4 and 2 cases.Conclusion MDCT can be used to assess the anatomy of retroaortic left renal vein exactly,which has clinical value in the diagnosis of some renal vein related diseases,guidance for kidney surgery and reducing the surgical complications.
关键词
肾静脉/解剖变异/体层摄影术,X线计算机Key words
Renal veins/Anatomic abnormalities/Tomography, X-ray computed引用本文复制引用
基金项目
国家自然科学基金(30970818)
国家自然科学基金(81271552)
出版年
2014
NETL
NSTL
维普
万方数据