肝脏灌注异常的动态增强CT表现及其可能原因（附56例病例分析）  

Hepatic Perfusion Disorders： Dynamic Contrast--Enhanced CT Features and Pathogenesis

作　　者：吕蓉[1] 张翔[1] 于长路[1] 

机构地区：[1]天津市第三中心医院放射科,天津300170

出　　处：《实用放射学杂志》2010年第12期1764-1767,共4页Journal of Practical Radiology

摘　　要：目的 分析肝脏灌注异常的动态增强CT表现及其可能的病因、发病机理,以期减少因此带来的误诊可能性.方法 回顾56例发现肝脏灌注异常患者的CT图像和临床资料,每位患者均经平扫和动态增强CT检查.结果 肝脏灌注异常（63处/56例）中56处表现为动脉期和/或门静脉期的一过性高密度异常强化,平衡期恢复正常 7处表现为动脉期和/或门静脉期的一过性低密度,平衡期恢复正常.其中52处形态为楔形、三角形、片状、不规则形,2处为条带状,3处为弥漫性,6处沿叶段分布.结论肝脏灌注异常的CT表现多样,发病原因和机制复杂,故在诊断时应给予高度重视.Objective To study dynamic contrast--enhanced CT features and pathogenesis of hepatic per/usion disorders（HPl）. Methods The dynamic comrast--enhanced CT scans and clinical data in 56 cases with HPD were reviewed, and all the cases under went plain and dynamic contrast-- enhanced CT scans. Results 63 HPDareas in 56 cases were detected by contrast--enhanced CT, 56 HPDs appeared as parenchymal transient enhancement during hepatic arterial phase and /or portal venous phase, 7 HPI）s ap- peared as low perfusion areas during hepatic arterial phase and/or portal venous, and then all of 6.3 HPDs came back to normal at- tenuation during equilibrium phase. HPDs appeared as shape of wedge, triangle, patchy or irregular in 52, strip in 2, diffusion in 3 and the lobe and segment of liver in 6. Conclusion The dynamic contrast--enhanced CT findings of HPD were variant, and are of complicated palhogenesis, so should be cared when diagnosing the HPD.

关 键 词：肝脏 灌注异常 体层摄影术 X线计算机 

分 类 号：R575[医药卫生—消化系统] R814.42[医药卫生—内科学]