摘要
目的:运用数字减影血管造影技术(DSA),观察直肠上动脉(SRA)DSA下的临床解剖学表现,为血管入路介入治疗痔病提供解剖学依据。方法:选择接受血管介入治疗的非痔病志愿者作为研究对象,共24例(男性12例、女性12例),采用DSA获取SRA图像数据,研究患者临床特征、SRA来源、起始、形态、分支走行以及分布。结果:SRA主干及分支均完整显影。其分支模式以一级主干分为左、右2支(二分叉型)为主,占87.5%。22型(左2支、右2支)占29.2%;12型(左1支、右2支)占25.0%;31型(左3支、右1支)占8.3%;13型(左1支、右3支)占13.0%;21型(左2支、右1支)、23型(左2支、右3支)各占8.3%;14型(左1支、右4支)、32型(左3支、右2支)各占4.2%。抵达肛直肠交界前发出2级分支数量平均为(3.9±1.3)支、3级分支(3.5±1.9)支、4级分支(1.5±2.2)支,肛直肠交界处分支数量为(5.5±1.3)支,到达齿状线处的分支为(2.3±1.1)支,其中左侧(1.0±0.7)支、右侧(1.4±0.7)支。结论:DSA下的SRA及分支的临床解剖,能更好地评估SRA来源、起始、形态、分支走行及分布情况,为超选择动脉栓塞消融术中靶血管和栓塞剂剂量的选择提供参考,并为该术式操作提供理论支持。
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.
作者
李龙
梁乔祎澜
余灵洁
罗春生
Li Long;Liang Qiaoyilan;Yu Lingjie;Luo Chunsheng(Department of Proctology,Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine,Shanghai 200120,China)
出处
《解剖学杂志》
2025年第2期111-114,共4页
Chinese Journal of Anatomy
基金
上海申康医院发展中心临床三年行动计划项目(SHDC2020CR3094B)。
关键词
直肠上动脉
数字减影血管造影
临床解剖
superior rectal artery
digital subtraction angiography
clinical anatomy
