成人腹股沟区多排螺旋CT解剖

目的:探讨多层螺旋CT对显示正常成人腹股沟区解剖结构的价值.方法:对20例正常成人腹股沟区进行MDCT扫描,从轴位、冠状位、矢状位及MPR上观察腹股沟重要解剖结构,并对双侧结构进行比较.结果:腹壁下动脉、内环、腹股沟韧带、腹股沟管、精索及子宫圆韧带100％显示,其中腹股沟韧带、腹股沟管和股三角、腹股沟三角在多平面重组显示最好.腹股沟管浅环在男性中显示率约60％(6/10).右侧内环位置较左侧低[右侧(46.4±7.6)mm,左侧(45.3±8.6)mm,P=0.049],差异有统计学意义.其他双侧结构(包括腹直肌宽度P=0.774、腹直肌厚度P=0.385、腹股沟韧带长度P=0.400、内环到髂棘垂直线距离P=0.186、腹股沟管与腹股沟韧带夹角P=0.837、腹股沟管长度P=0.337、内环到中线距离P=0.599、腹股沟管与前壁夹角P=0.279)对比,差异无统计学意义.结论:MDCT可满意地显示正常成人腹股沟区解剖结构,为临床及基础解剖研究提供一种新的途径.

MDCT anatomy of adult groin region

Objective: To investigate significance of applying multi-detector row spiral CT(MDCT) to identifying the anatomy structures of normal adults’ groin regions.Methods: 20 adult subjects with normal groin anatomic structures were underwent MDCT scans,the detailed structures of groin regions were observed from axial,coronal,sagittal and MPR.Then the bilateral anatomic structures were compared.Results: Arteria epigastrica inferior(API),deep inguinal ring(DIR),inguinal ligament(IL),inguinal canal(IC),spermatic cordand(SC),round ligament of uterus were all visible.Of which,IL,IC,femoral triangle and inguinal triangle were showed best on MPR.Superficial inguinal ring was found in 6 of 10 males(60%).The location of RDIR was lower than that of LDIR [right(46.4±7.6) mm,left(45.3±8.6)mm,P=0.049],which was of statistical difference.But no statistical difference was revealed between other bilateral structures including the width and thick of rectus abdominis(P=0.774,P=0.385),the length of IL(P=0.400),the vertical distance between IR and the erect crossed anterior superior spine(P=0.186),the angle between IL and IC(P=0.837),the length of IC(P=0.337),the vertical distance between IR and sagittal line crossing medial point(P=0.599),the angle between IC and anterior abdominal wall(P=0.279).Conclusion: MDCT can satisfactorily reveal the anatomic details of groin region of adults,and it provides a new approach to clinical and basic anatomy researches.