一、引言伽玛照相机是一种伽玛粒子探测仪器,它通过探测人体内注射性同位素的分布的情况,以图象的形式使医生能够观察人体脏器的形态和生理过程,以确定病灶的存在及其部位以及器官的代谢功能,是目前人体脏器非侵入式检查的有效手段之一。特别是它在心脏动态检查和脏器代谢功能的检查方面有独到的作用。七十年代中期以来 I. INTRODUCTION Gamma camera is a kind of gamma particle detection instrument. It detects the distribution of the injectable isotope in the human body to enable the doctor to observe the morphology and physiological process of the human organ in the form of an image to determine the location of the lesion Existence and its parts and organ metabolism, is currently one of the effective means of non-invasive examination of human organs. In particular, it has a unique role in the dynamic examination of the heart and the examination of the metabolic function of organs. Since the mid-seventies