肝左叶一过性灌注异常与肝动脉变异的MSCT相关性研究

发布时间：2018-06-18 15:02

  本文选题：肝左叶 + 分布　； 参考：《中国医学计算机成像杂志》2017年05期

【摘要】：目的:探究肝左叶一过性灌注异常与肝动脉变异之间的相关性,以提高对肝动脉变异的认识。方法:筛查2015年06月-2015年12月上腹部双期增强CT检查的连续性病例1275例,所有病例均按照统一扫描方案行动脉期、门静脉期双期扫描。收集肝左叶表现为叶段性分布的一过性灌注异常者,并记录是否存在肝动脉变异;按Hiatt分型进行分类,分析肝动脉变异与肝左叶一过性灌注异常的相关性。结果:1275例连续性病例中33例符合纳入标准,肝左叶一过性灌注异常均呈肝叶或肝段分布,以多个肝段同时出现居多(30/33)。MSCT表现为动脉期肝左叶或1~3个段均匀性密度增高,平扫及门静脉期为等密度;其中肝S3分布2例(对应血管变异为HiattⅣ型、腹腔干与肠系膜上动脉共干各1例),肝S4分布1例(对应血管变异为HiattⅡ型1例),肝S2加S3分布15例(对应血管变异为HiattⅡ型9例,HiattⅤ型1例,肝左动脉粗大2例,无血管变异3例),肝S2、S3及S4分布15例(对应血管变异为HiattⅡ型6例,HiattⅢ型4例,HiattⅤ型2例,HiattⅣ型、肝左动脉粗大、肝右动脉起自于腹腔干各1例)。本组3例肝左动脉粗大分别表现为直径超过肝右动脉17%、28%、40%。肝左叶一过性灌注异常与肝动脉变异存在显著相关性(χ2=35.9,P=0.022),以肝左动脉变异为主(64%)。结论:肝左叶表现为叶段性分布的一过性灌注异常者常存在肝动脉变异,该征象对CT诊断肝动脉变异有提示作用。
[Abstract]:Aim: to investigate the relationship between hepatic Zuo Ye transient perfusion abnormality and hepatic artery variation in order to improve the understanding of hepatic artery variation. Methods: from June 2015 to December 2015, 1275 consecutive cases of double phase enhanced upper abdomen CT were screened. All cases underwent arterial phase and portal phase double phase scanning according to the unified scanning scheme. To collect the patients with transient hepatic perfusion abnormalities with segmental distribution of hepatic Zuo Ye and to record the presence of hepatic artery variation and to analyze the correlation between hepatic artery variation and hepatic Zuo Ye transient perfusion abnormality according to Hiatt classification. Results 33 out of 1275 consecutive cases met the inclusion criteria, and hepatic Zuo Ye transient perfusion abnormalities were distributed in lobes or segments of liver. 30% 33% MSCT showed increased homogeneous density of hepatic Zuo Ye or 1-3 segments in arterial phase at the same time. The distribution of liver S3 was found in 2 cases (corresponding to vascular variation in Hiatt 鈪，

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