解剖学杂志2025，Vol.48Issue(2)：111-114,4.DOI:10.3969/j.issn.1001-1633.2025.02.003
基于数字减影血管造影技术的直肠上动脉及分支临床解剖
Clinical anatomy of the superior rectal artery and its branches based on digital subtraction angiography
摘要
Abstract
Objective:To observe the clinical anatomical features of the superior rectal artery(SRA)under digital subtraction angiography(DSA)and provide an anatomical basis for transvascular interventional therapy in hemorrhoidal disease.Methods:Non-hemorrhoid volunteers undergoing vascular interventional therapy were enrolled.A total of 24 volunteers(12 males and 12 females)were included.SRA imaging data were obtained through DSA to analyze clinical characteristics,SRA origin,initiation,morphology,branching patterns,and distribution.Results:The SRA trunk and branches appeared with complete visualization.The primary branching pattern was bifurcation type(left and right branches from the main trunk),accounting for 87.5%.Morphological subtypes based on terminal branches were as follows:type 22(left 2,right 2 branches):29.2%;type 12(left 1,right 2 branches):25.0%;type 31(left 3,right 1 branch):8.3%;type 13(left 1,right 3 branches):13.0%;type 21(left 2,right 1 branch)and type 23(left 2,right 3 branches):8.3%each;type 14(left 1,right 4 branches)and type 32(left 3,right 2 branches):4.2%each.The mean numbers of secondary,tertiary,and quaternary branches before reaching the anorectal junction were(3.9±1.3),(3.5±1.9),and(1.5±2.2),respectively.At the anorectal junction,the average number of branches was(5.5±1.3),and at the dentate line,the average number of branches was(2.3±1.1),with(1.0±0.7)on the left side and(1.4±0.7)on the right side.Conclusion:DSA-based clinical anatomy of the SRA and its branches better evaluates its origin,initiation,morphology,branching patterns,and distribution.These findings provide critical references for selecting target vessels and embolic agent dosage in superselective arterial embolization ablation,as well as offer theoretical support for optimizing procedural protocols.关键词
直肠上动脉/数字减影血管造影/临床解剖Key words
superior rectal artery/digital subtraction angiography/clinical anatomy分类
基础医学引用本文复制引用
李龙,梁乔祎澜,余灵洁,罗春生..基于数字减影血管造影技术的直肠上动脉及分支临床解剖[J].解剖学杂志,2025,48(2):111-114,4.基金项目
上海申康医院发展中心临床三年行动计划项目(SHDC2020CR3094B) （SHDC2020CR3094B）
