标准摘要
[中文适用范围]： IEC 61675的本部分规定了描述配备平行孔准直器的安格型旋转伽马相机单光子发射计算机断层扫描仪（SPECT）特性的术语和测试方法。由于这些系统基于 Anger 型伽马相机，IEC 61675 的这一部分应与 IEC 60789 结合使用。这些系统由龙门架系统、单个或多个探测器头和计算机系统以及采集、记录和显示设备组成。 IEC 61675-2 的这一部分还规定了用于声明在重合模式和单光子模式下操作的单光子计算机断层扫描的特性的测试条件。符合模式指定的测试方法基于 IEC 61675-1 中描述的专用 PET 断层扫描仪的测试方法，以尽可能反映符合检测的临床使用。测试已进行修改，以反映仅在需要时才在符合检测模式下运行的单光子计算机断层扫描仪的有限灵敏度和计数率特性。选择 IEC 61675 本部分规定的测试方法来尽可能反映 Anger 型旋转伽玛相机单光子发射计算机断层扫描 (SPECT) 的临床使用情况。测试方法旨在由制造商执行，从而使他们能够在通用基础上描述 SPECT 系统的特性。尚未指定测试来表征重建图像的均匀性，因为迄今为止已知的所有方法都将主要反映图像的噪声。 [外文原描述]： IEC 61675-2:1998 specifies terminology and test methods for describing the characteristics of Anger type rotational gamma camera single photon emission computed tomographs equipped with parallel hole collimators. As these systems are based on Anger type gamma cameras this part of IEC 61675 shall be used in conjunction with IEC 60789. These systems consist of a gantry system, single or multiple detector heads and a computer system together with acquisition, recording, and display devices. The test methods specified in this part of IEC 61675 have been selected to reflect as much as possible the clinical use of Anger type rotational gamma camera single photon emission computed tomographs. It is intended that the test methods be carried out by manufacturers, thereby enabling them to describe the characteristics of gamma camera single photon emission computed tomographs systems on a common basis. No test has been specified to characterize the uniformity of reconstructed images because all methods known so far will mostly reflect the noise of the image.
英文名称Radionuclide imaging devices - Characteristics and test conditions - Part 2: Single photon emission computed tomographs