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~(99m)Tc-HMPAO ~(123)I-HIPDM ~(131)I-HIPDM 脑血流显像剂 内照射辐射吸收剂量 MIRD
~ (99m) Tc-HMPAO ~ (123) I-HIPDM ~ (131) I-HIPDM cerebral blood flow imaging agent internal irradiation radiation absorbed dose MIRD