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体循环的某些静脉可以向肝脏第Ⅰ、Ⅳ段供血,形成独特的血液动力学,并因此在该区形成假性病变,增强CT检查时表现为异常灌注区,以及在异常灌注区的基础上所形成的易与肝脏肿瘤性病变相混淆的局灶性脂肪肝和弥漫性脂肪肝中的正常“肝岛”。综述了肝脏第Ⅰ、Ⅳ段独特的血液动力学的形成及这些假性病变的CT表现。
Some of the systemic venous blood can be supplied to stages I and IV of the liver to form unique haemodynamics and therefore form a pseudogenic lesion in this area that enhances the performance of abnormal perfusion on CT and on the basis of abnormal perfusion The resulting formation of hepatic neoplastic lesions confused with focal fatty liver and diffuse fatty liver in the normal “liver island.” This review summarizes the unique formation of hemodynamics in stage I and IV of the liver and the CT findings of these pseudo-lesions.