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作者应用~(99m)TcO_4~-和~(99m)Tc-GH诊断脑内病变,特别对转移性肿瘤和后颅凹肿瘤作了对比。在脑扫描中强调两种示踪剂不同分子活动的代谢概念。作者应用两种γ照相机,一种无数据处理机,一种有专用数据处理机。两种仪器每天用~(99m)Tc的平面液体模型核对均匀度,并有规律地调整光电倍增管,以使γ照相机获得最好的效应,防止出现人为的假阳性。 52例病人分别进行两种示踪剂检查,间隔时间至少在48小时。每次给15～20毫居里。两者进行配
The authors used ~ (99m) TcO_4 ~ - and ~ (99m) Tc-GH to diagnose brain lesions, especially for metastatic tumors and posterior fossa tumors. The metabolic concept of the activity of two different tracer molecules is emphasized in brain scans. The authors applied two gamma cameras, one with no data processor and one with a dedicated data processor. Both instruments check the uniformity with a flat liquid model of ~ (99m) Tc daily and regularly adjust the photomultiplier tubes to get the best effect from the gamma camera and prevent artificial false positives. Fifty-two patients underwent two tracer tests at intervals of at least 48 hours. Give 15 ~ 20 milli Curie each time. With both