目前广泛采用的放射性核素肝扫描术,系旨在获取与肝脏实际俯视尺寸尽可能一致的肝扫描图,并据以进行临床诊断。这种扫描法可称为1:1扫描法。然而,模型实验表明,通常1:1扫描图仅对显示肝脏边缘薄组织部位的占位性病灶有效,而对于肝脏深部厚组织内较小占位性病灶的显示,则实际上无能 Currently widely used radionuclide liver scan is designed to obtain a liver scan consistent with the actual size of the liver looks as possible, and based on the clinical diagnosis. This scan method can be called 1: 1 scan method. However, model experiments show that usually a 1: 1 scan is only valid for mass lesions that show thin sections of the liver margin, whereas smaller ones for deep thick sections of the liver are virtually incapacitated