【摘要】 用自制的生物导向显像剂１３１Ｉ—ＳＺ３９静脉注射于４０例经Ｘ—ＣＴ证实的颅内占位患者，ＳＰＥＣＴ扫描出现阳性免疫复合物时，在占位区域内呈现红色斑块，藉此对胶质瘤进行定性诊断，并与Ｘ－ＣＴ进行对比．分析其定性诊断效能。结果其敏感性９２％，正确性８２％，阳性预报价值８１％，阴性预报价值９１％。明显优于Ｘ－ＣＴ。更多还原

【Abstract】 patients with X-CT confirmed intracranial space occupying di- seases were intravenously injected with the targeting image agent 131 I-SZ39 pepared in our laboratory. With SPECT scanning, the positive complex will display a red colour in the space occupying area which confirms the diagnosis of glioma. The differential diag- nosis efficiency of SPECT targeting diagnosis was also compared with that of X-CT. The result showed that the sensitivity rate is 92%, the accurate rate 82%, the positive predication rate 81 %, and the negative predication rate 91 %, indicating that the targe- ting diagnosis with SPECT is much more reliable than X-CT.更多还原