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本研究探讨利用ＳＰＥＣＴ断层显像体积积分法测定甲状腺重量的方法学 ,现报道如下。一、资料与方法利用面源上放置铅条和 2个已知距离的点源这 2种方法对系统像素值进行测量与标定。兔耳气球内充99ＴｃｍＯ-4 37～74ＭＢｑ ,体积 15～ 110ｍＬ ,以 5ｍＬ等差序列递增 ,共制成
This study explored the SPECT tomography volume integral method for the determination of thyroid weight, are reported below. I. Data and Methods The two methods of measuring the pixel value of the system and calibrating the system using the point source on which the lead is placed and the two known distances are placed are used. Rabbit ear balloon filled with 99TcmO-4 37 ~ 74MBq, volume 15 ~ 110mL, with 5mL incremental sequence increase, were made of