ECT是核医学领域的一项新的影象技术。它是一项复杂的新技术,涉及数学、物理、计算机等广泛的知识领域。 ECT的性能测试和质量控制是保证诊断准确性的一项十分重要的工作。国际上经常用模型来研究成象系统的性能,其优点是可以排除病人体内因素的变化、客观条件差异等造成对机器性能的影响。当然,模型应尽量模拟病人的生理状况和物理条件。国际原子能机构(IAEA)组织了一些专家进行ECT的性能测试,不久将会有报道。比较复杂和完善的ECT ECT is a new imaging technology in nuclear medicine. It is a complex new technology involving a wide range of knowledge areas, such as mathematics, physics, computers. The performance testing and quality control of ECT is a very important task to ensure the accuracy of diagnosis. The international model often used to study imaging system performance, its advantage is to rule out changes in the patient’s body factors, objective differences in performance caused by the impact on the performance of the machine. Of course, the model should try to simulate the patient’s physical condition and physical conditions. The International Atomic Energy Agency (IAEA) has organized some experts to conduct performance tests on ECTs, which will soon be reported. More complicated and perfect ECT