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一、概述目前,能用作肾显像的显像剂很多,除较早应用的~(203)Hg或~(197)Hg-新醇、~(131)I-邻碘马尿酸(OIH)外,60年代后期以来,用~(99m)Tc标记的肾显像剂大量发展,多达30种以上(表1)。由于这些化合物的极性、分子量和蛋白结合的程度等差异,以致经肾排泄的情况和肾脏对其处理的机制不尽相同,因而,各类化合物的显像特点、临床应用的范围和价值亦有差异。大量的皮质显
I. Overview Currently, there are many imaging agents that can be used for renal imaging. In addition to the earlier application of ~ (203) Hg or ~ (197) Hg-neool, ~ (131) I- In addition, up to 30 or more renal imaging agents labeled with 99mTc have been developed since the late 1960s (Table 1). Due to the differences in polarities, molecular weights and the degree of protein binding between these compounds, the excretion by the kidneys and the mechanism by which the kidneys treat them vary. Therefore, the imaging characteristics, the range and value of clinical applications of various compounds Differences. A lot of cortex obvious