摘要
目的分析肝癌患者肝脏灌注异常动态增强CT表现及其可能的病因、发病机制,以期减少误诊可能。方法回顾性分析56例肝癌合并肝脏灌注异常的CT检查资料,根据CT表现对其病因及形成机制进行探讨。结果肝癌合并肝脏灌注异常56例患者共62处,形成原因分为:①肝癌的"盗血"和"虹吸"作用发生肝灌注异常现象26处;②肝动脉-门静脉瘘产生灌注异常30处;③门静脉癌栓形成灌注异常6处。表现为动脉期和/或门静脉期一过性高密度异常强化,平衡期恢复正常。结论肝癌患者肝脏灌注异常的CT表现多样,发病原因和机制复杂,所以在诊断时应高度重视。
Objective To study dynamic contrast-enhanced CT features and pathogenesis of hepatic perfusion disorder（HPD） in liver cancer. Methods CT data of 56 cases of liver cancer with HPD were analyzed retrospectively. The CT features and pathomechanism were studied. Results 56 patients with liver cancer showed 62 HPD, the reasons of HPD were：the ＂theft of blood＂ and ＂siphon＂ phenomenon （26 cases）; perfusion abnormality of hepatic arterio portal shunts-portal vein shunting （APS） （30 casees） ; cancer embolus of portal vein （6 casees）. HPD appeared as brief high density in arterial phase or portal venous phase, and turned to isodensity in stationary phase. Conclusion The dynamic contrast-enhanced CT findings of HPD in liver cancer were variant with complicated pathogenesis, which should be cared when diagnosing.
出处
《影像诊断与介入放射学》
2011年第5期358-360,共3页
Diagnostic Imaging & Interventional Radiology
关键词
肝癌
灌注异常
体层摄影术
X线计算机
Hepatocellular carcinoma
Perfusion disorder
Tomography, X-ray computed
