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68Ga半衰期为67.6min,89%分支的正电子衰变,68Ga由68Ge/68Ga发生器制备,不依赖加速器,制备方便,优良的核素性质使其成为正电子药物研究的重要关注对象。68Ga标记的生长抑素类似物DOTA-TATE、DOTA-TOC已在国外临床上广泛用于生长抑素受体阳性肿瘤的显像。本工作采用SnO2
The half-life of 68Ga is 67.6min with 89% branching positron decay. 68Ga is prepared by a 68Ge / 68Ga generator, which does not depend on the accelerator and is easy to prepare. The excellent nuclide properties make it an important target for positron research. 68Ga labeled somatostatin analogues DOTA-TATE, DOTA-TOC has been widely used clinically abroad somatostatin receptor-positive tumors imaging. This work uses SnO2