基于多层螺旋CT健康成人门静脉直径的相关统计分析  

A statistic analysis of portal vein diameter of adult measured by multiple detector spiral CT

作　　者：刘元早[1,2] 翟昭华[1] 

机构地区：[1]川北医学院附属医院放射科,四川南充637000 [2]贵州省铜仁市人民医院放射科,贵州铜仁554300

出　　处：《川北医学院学报》2014年第2期160-163,共4页Journal of North Sichuan Medical College

基　　金：四川省自然科学基金项目(2011SZ0237)

摘　　要：目的：为确定正常成人生理状态下门静脉（hepatic portalvein，HPV）的正常CT范围，为影像学诊断肝脏、门静脉病理变化引起的形态异常提供量化的客观依据。方法与材料：回顾性分析2012年4月至2013年3月在川北医学院附院行64排螺旋CT增强检查的健康成人58例（男性25例，女性33例，年龄21岁到78岁），同层面分别测量肝门静脉、腹主动脉（ab-dominalaorta，AA）短径及腰椎（1umbarspine，LS）前后径，分别计算门静脉短径/腹主动脉短径、门静脉短径/腰椎前后径的比值，命名为R1、R2，利用SPSS20．0进行统计分析。结果：门静脉短径（13．22±1．427）mm，男女之间差异明显（P=0．000），与年龄无明显相关性，95％置信区间10．48～16mm，基于均数的变异系数10．8％；门静脉短径/腹主动脉短径为0．73±O．11，男女之间差异不明显（P=0．433），与年龄呈中度负相关性（r=-0．503，P=0．000），基于均数的变异系数15．6％；门静脉短径/腰椎前后径0．45±0．046，男女之间差异不明显（P=0．970），与年龄呈轻度负相关性（r=-0．280，P=0．03），基于均数的变异系数10．2％．。门静脉短径与腰椎前后径及腹主动脉短径存在中等相关性（r=0．484，P：0．000；r=0．401，P：0．002）。结论：门静脉短径/腰椎前后径比值变异性较小，不同性别及年龄组之间没有明显的差异，较其他指标更具有指导意义。Objective： Determine the normal CT scale of hepatic portal vein（HPV） of adult,and provide an objective quantitative in dicator for abnormal morphologies of liver and portal vein in pathological changes. Methods： Retrospectively analyzed 58 normal cases （25 males and 33 females,aged 21 years old to 78 years old）that were studied by 64-detectors CT in our hospital from April 2012 to March 2013. It measured the shortest distance of hepatic portal vein, abdominal aorta（ abdominal aorta, AA） and size of anteroposterior distance of lumbar spine（ lumbar spine, LS）. The ratio（ R1 , R2 ）were calculated between the shortest distance of hepatic portal vein, the shortest distance of abdominal aorta, the shortest distance of hepatic portal vein and the size of anteroposterior distance LS, and these da ta were statistically analyzed by SPSS20.0. Results ：The shortest distance of hepatic portal vein is （ 13.22 ± 1. 427 ） ram, and there are significant differences between male and female（ P = 0. 000） without significant correlation in ages. 95% of confidence interval is 10. 48 - 16 mm and the variable coefficient based on the mean data is 10.8% ;R1 is 0.73 ±0. 11 without significant difference between male and female （P = 0. 433 ） , and it was medium negative correlation（ r = -0. 503, P = 0. 000 ）in ages. The variable coefficient based on the mean data is 15.6 % ;R2 is 0. 45 ＋ O. 046 without significant difference between male and female（ P = 0. 970） , and it was slightly neg- ative correlation（ r = - 0. 280 ,P = 0.03 ） in ages. The variable coefficient based on the mean data is 10.2%. There is a moderate correlation among the size of the shortest distance of Portal vein,the size of distance anter-posterior of the lumbar spine and the shortest dis tance of abdominal aortic （ r =- 0. 484, P = 0. 000 ; r = 0. 401, P = 0. 002 ）. Conclusion ： There is minor variability of the ratio between the shortest distance of portal vein and the size of anteroposterior distance of lumb

关 键 词：多排螺旋CT 门静脉 统计 

分 类 号：R814[医药卫生—影像医学与核医学]