Keywords Liver;Diffusion-weighted imaging;Respiration triggered technique;Focal hepatic lesion;primary liver cancer;cellularity;nuclear-to-cytoplasm ratio;microvessel density;

• 关键词肝脏;弥散加权成像;呼吸门控;局灶性肝病变;原发性肝癌;细胞数量;核质比;微血管密度;