肾动脉变异的16层螺旋CT表现  

16-detector Row CT of a rteriorenal anatomlcal variants

作　　者：公佩友[1] 耿军祖[1] 邹振兴[1] 王福江[1] 

机构地区：[1]青岛大学医学院附属医院,山东青岛264000

出　　处：《泰山医学院学报》2006年第4期303-306,共4页Journal of Taishan Medical College

摘　　要：目的应用16层螺旋CT 3D(VR,M IP)重建技术,分析研究肾动脉的解剖变异及其规律。方法随机选择144例因为腹部病变而行16层螺旋CT增强的患者作回顾性肾动脉CTA分析。在AW 4.1工作站采用层厚1.25mm作3D(VR,M IP)图象重建。结果肾动脉变异分别占病例数和肾脏数的51.4%(74/144)和33.7%(97/288)。肾门前肾动脉分支(Ⅰ类)为最常见型,占变异数的56.7%(55/97),肾副动脉(Ⅱ类)次之,占35.1%(34/97),Ⅲ类(Ⅰ类和Ⅱ类混合存在型)少见,占7.2%(7/97)。肾动脉变异率在双肾及男女之间无差异。结论肾动脉变异颇为常见,表现形式多样,充分了解这些变异对腹腔镜肾脏切除术至关重要。Objective ： To evaluate the visualization rate aud describe the morphologic pattern of the arteriorenal anatomical variants on muhidetector CT （MDCT） by using 3D reformation（VR,MIP） display. Methods： We conducted a retrospective evaluation of the arteriorenal anatomical variants with enhanced MDCT in 144 consecutive patients with 288 kidneys. The images were reeonstrncted with sections of 1.25 - mm thickness reconstructed . Results： Arteriorenal anatomical variants were noted in 51.4% of patients and 33.7% kidneys. Of all the arteriorenal anatomical variants, category Ⅰ （ proximal arterial branches ） were found in 56.7%, category Ⅱ （ accessory renal arteries ） 35.1% and category Ⅲ （ the mixture of category Ⅱ and category Ⅱ） 7.2%. In anatomical variant rate, there is no difference between the right and left kidneys, and between the male and female. Conclusion： Arteriorenal anatomical variants constitute the most common, clinically important renal vascular variant. It is extremely important for.surgeons who operate laparoscopic nephrectomy to have a full knowledge of these anatomical variants.

关 键 词：16层螺旋CT 3D重建 肾动脉变异 

分 类 号：R816.7[医药卫生—放射医学]