显像剂被脏器或组织摄取的机制与显像方法的关系中,Tc-DTPA肾动态显像为()
A.化学吸附
B.细胞吞噬
C.通透弥散
D.选择性浓聚
E.选择性排泄
参考答案:E
--- Marry is in hospital.
--- Oh, really? I _______ know. I _________ go and see her.
A.didn’t; am going to
B.don’t; would
C.don’t; will
D.didn’t; will
关于进展期胃癌CT的描述,错误的是()
A.胃应适度充盈、扩张,并应用低张药物
B.异常增厚的胃壁在增强时有较明显强化
C.CT较容易发现肝胃韧带内增大的淋巴结
D.大弯侧癌可沿胃结肠韧带浸润
E.CT易显示肿块,难以显示癌性溃疡