摘要
探讨64层螺旋CT门静脉成像评价肝炎后肝硬化(PHC)侧支循环及其解剖分布。收集PHC合并侧枝循环的建立与开放36例,采用64层螺旋CT行三期扫描,用多平面最大密度投影对门静脉期成像。其中,胃底、食管静脉曲张,分别占35例(97%)、30例(83%),输入静脉主要为胃左静脉,占34例(94%),输入静脉的起源主要为脾静脉,占24例(67%)。输出静脉主要为奇静脉,占30例(83%)。脐旁静脉侧枝循环,占7例(19%),输入静脉均为门静脉左支,输出静脉均为腹壁浅静脉。门静脉海绵样变性,占5例(14%)。脾静脉海绵样变性,占16例(44%)。由此可知,64层螺旋CT能有效地评价PHC侧支循环。
This study sought to etermine the value of portal venography with 64-slice MDCT in the evaluation of compensatory circulation resulting from decompensated posthepatitic cirrhosis（PHC）,and in the clarification of its anatomic distribution. Thirty-six patients with clinically confirmed compensatory circulations resulting from PHC were enrolled in this study. They underwent thoracicoabdominal triphasic enhancement CT scans with 64-slice MDCT. The data of the portal venous phase acquired were used for obtaining CT-MIP （maximum intensity projection） images of portosystematic collaterals such as gastric fundic and esophageal varices,paraumbilical veins,spleno-renal shunts,and their inflowing and outflowing vessels. On CT-MIP portography,gastric fundic varices were shown in 35 cases （97%） and esophageal varices in 30 cases （83%）. The left gastric vein was the common inflowing vessel of the varices in 34 cases （94%）; it was mainly originated from splenic vein in 24 cases （67%）. With regard to the outflowing vessels,they were commonly azygos vein in 30 cases （83%）. As for paraumbilical veins in 7 cases （19%）,the inflowing vessel was the left branch of portal vein,and the outflowing vesse was the superficial epigastric vein. Cavernous transformation of the portal vein was seen in 5 cases （14%） and cavernous transformation of splenic vein was seen in 16 cases （44%）. CT-MIP venography with 64-row MDCT could be considered as an effective and noninvasive method for detecting the compensatory circulation resulting from decompensated PHC.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2010年第3期511-515,共5页
Journal of Biomedical Engineering
基金
国家自然科学基金资助项目(30870688)
关键词
门静脉
体层摄影术
X线计算机
侧支循环
肝炎后肝硬化
Portal vein
Tomography
X-ray computed
Compensatory circulation
Posthepatitic cirrhosis（PHC）
