不同类型十二指肠水平部受压的发生率及临床意义  

The Incidence and Clinical Significance of Different Types of Horizontal Duodenal Compression

作　　者：李琳琨 李春燕[2] 李琳杰 杨星烨 Li Linkun;Li Chunyan;Linjies;Yang Xingye(Department of Radiology,Guigang People's Hospital,Guigang,Guangxi 537100;Department of Radiology,the First Affiliated Hospital of Guangxi Medical University,Nanning,Guangxi 530021;Guangxi Medical University,Nanning,Guangxi 530021)

机构地区：[1]广西贵港市人民医院放射科,广西贵港537100 [2]广西医科大学第一附属医院放射科,广西南宁530021 [3]广西医科大学,广西南宁530021

出　　处：《现代医用影像学》2024年第11期2053-2057,共5页Modern Medical Imageology

摘　　要：目的:探讨不同类型十二指肠水平部受压的发生率及其临床意义。方法:回顾性选取在院受检人群中行全腹部CT增强检查者1066人作为研究对象,统计该受检人群十二指肠水平部受压的不同类型、性别、各年龄段(青少年、青壮年、中老年)及3种类型的肠系膜上动脉与腹主动脉夹角(即AMAⅠ型、Ⅱ型、Ⅲ型)的发生率。根据十二指肠水平部受压的情况不同分肠系膜上动脉(SMA)压迫组、肠系膜上静脉(SMV)分支压迫组,分析组间性别、各年龄段、AMA类型之间的差异。结果:受检人群中十二指肠水平部受压的发生率为33.40%,其中由SMA压迫十二指肠水平部的发生率为23.83%,由SMV分支压迫十二指肠水平部的发生率为9.57%。男性发生率43.30%,女性发生率56.70%。青少年发生率46.35%;青壮年发生率35.11%;中老年发生率18.54%。AMA为Ⅰ型发生率53.40%,角度平均(25.54±4.59)°;Ⅱ型发生率42.10%,角度平均(45.55±9.46)°;Ⅲ型发生率4.50%,角度平均(90.19±16.43)°。对SMA压迫组与SMV分支压迫组发生率差异性进行χ^(2)检验,性别差异无统计学意义(P>0.05),不同年龄段及AMA类型间差异具有统计学意义(P<0.05)。结论:十二指肠水平部受压多为SMA压迫所致,发生率可高达23.83%,其好发于青少年,AMA为Ⅰ型者多见。Objective:To investigate the incidence and clinical significance of diferent types of horizontal duodenal compression.Methods:A retrospective study was conducted on 1066 patients who underwent contrast-enhanced CT scans of the entire abdomen in the hospital population.The incidence of different types,genders,age groups(adolescents,young adults,middle-aged and elderly)of duodenal horizontal compression,as well as three types of angle between the superior mesenteric artery and the abdominal aorta(AMA type I,II,and III)were analyzed.Divide the superior mesenteric artery(SMA)compression group and superior mesenteric vein(SMV)branch compression group according to the level of duodenal compression.The differences between the groups in gender,age groups,and AMA types were analyzed.Results:The incidence of duodenal horizontal compression in the tested population was 33.40%,of which 23.83%were compressed by SMA and 9.57%were compressed by SMV branches.The incidence rate was 43.30%for males,and 56.70%for females.The incidence rate of adolescents was 46.35%;the incidence rate of young adults was 35.11%;The incidence rate of middle-aged and elderly people was 18.54%.The incidence of type I was 53.40%,with an average angle of(25.54±4.59)°;The incidence of type II was 42.10%,with an average angle of(45.55±9.46)°;The incidence of type III was 4.50%,with an average angle of(90.19±16.43)°.For comparing the incidence differences between the SMA compression group and the SMV branch compression group,X tests showed no statistically significant on gender difference(P>0.05),but there were statistically significant(P<0.05)on age groups and AMA types.Conclusion:The horizontal compression of the duodenum is mostly caused by SMA compression,with an incidence rate of up to 23.83%.It is more common in adolescents,and AMA type I.

关 键 词：十二指肠水平部 肠系膜上动脉 肠系膜上动脉与腹主动脉夹角 

分 类 号：R73[医药卫生—肿瘤]