目的　用多层螺旋CT评价各类肝脏灌注异常 ,强调认识肝脏灌注异常的重要意义。方法　回顾性分析 1年中接受上腹部螺旋CT检查的 15 68例病人的CT资料 ,对各种类型的肝脏灌注异常病例的CT表现、病因和发生机制进行探讨。结果　共发现各类肝脏灌注异常 10 3例 ,其中与肿瘤相关者 69例 ,非肿瘤相关者 3 4例。按其发生原因可分为 :( 1)肝动脉门静脉瘘 ( 4 1.7% ) ;( 2 )门静脉阻塞 ( 2 3 .3 % ) ;( 3 )炎症性充血 ( 17.5 % ) ;( 4 )富血供肿瘤的盗血现象 ( 6.8% ) ;( 5 )肝静脉阻塞 ( 4 .9% ) ;( 6)肝脏迷走血供 ( 3 .9% ) ;( 7)病因不明 ( 1.9% )。灌注异常的CT形态与其产生原因有明显的关系。结论　多层螺旋CT是评价各类肝脏灌注异常的有效方法。熟悉肝脏灌注异常的CT表现有助于对其所反映的病理生理状况作出准确推断 Objective To evaluate the abnormalities of liver perfusion by multislice spiral CT and to emphasize the importance of understanding hepatic perfusion abnormalities. Methods The CT data of 15 68 patients who underwent upper abdominal spiral CT in 1 year were retrospectively analyzed. CT findings, etiology and pathogenesis of various types of liver perfusion abnormalities were discussed. Results A total of 103 cases of abnormal liver perfusion were found, of which 69 were related to the tumor and 34 were non-tumor related. According to its causes can be divided into: (1) hepatic arterial fistula (4 1.7%); (2) portal vein obstruction (23.3%); (3) inflammatory hyperemia (17.5%); (6.8%) for tumor; (5) hepatic vein occlusion (4.9%); (6) hepatic vagus blood supply (3.9%); (7) unknown etiology (1.9%). There is a clear relationship between abnormal CT perfusion pattern and its cause. Conclusion Multi-slice spiral CT is an effective method to evaluate the various perfusion abnormalities in the liver. Familiar with CT perfusion abnormalities in the performance of the liver to help reflect the pathophysiological conditions to make accurate inferences