IEC 62220-2-1:2023 医用电气设备.数字X射线成像设备的特性.第2-1部分:双能量相减效率的测定.双能量射线成像用探测器

标准编号：IEC 62220-2-1:2023

中文名称：医用电气设备.数字X射线成像设备的特性.第2-1部分:双能量相减效率的测定.双能量射线成像用探测器

英文名称：Medical electrical equipment - Characteristics of digital X-ray imaging devices - Part 2-1: Determination of dual-energy subtraction efficiency - Detectors used for dual-energy radiographic imaging

发布日期：2023-08-09

标准范围

IEC 6220-2-1:20 23描述了与用于医疗应用的具有双能量成像能力的数字X射线成像设备相关的性能指标，并指定了其确定方法。这些度量可用于分析组织减影图像并评估数字X射线成像设备的剂量性能、噪声特性和组织减影功效。所描述的方法指示了获得多光谱原始数据和计算其导出的组织减影图像的过程。本文件的预期用户是制造商和设备齐全的测试实验室。本文件仅限于用于基于例如CR系统、直接和间接平板的单次或多次曝光双能量射线照相成像的数字X射线成像设备-基于探测器的系统。本文件不包括且不适用于:-用于乳房X线照相术或牙科X线照相术的数字X线成像设备；-狭缝扫描数字X射线成像设备；-计算机断层扫描或锥形束计算机断层扫描；-光子能量鉴别装置，例如光子计数X射线成像装置；-用于动态成像的设备(其中采集一系列图像，如在荧光透视或心脏成像中)。-拟与放射治疗射束一起使用的数字X射线成像设备。

IEC 6220-2-1:2023 describes the performance metrics associated with DUAL-ENERGY IMAGING capable DIGITAL X-RAY IMAGING DEVICES meant for medical applications and specifies the methods for their determination. These metrics can be used to analyse TISSUE-SUBTRACTED IMAGES and to evaluate dose performance, noise characteristics, and tissue-subtraction efficacy of DIGITAL X-RAY IMAGING DEVICES. The described methods indicate the procedures to obtain MULTI-SPECTRAL PRIMARY DATA and to compute their derived TISSUE-SUBTRACTED IMAGES.
The intended users of this document are MANUFACTURERS and well-equipped test laboratories. This document is restricted to DIGITAL X-RAY IMAGING DEVICES that are used for single or multiple exposure dual-energy radiographic imaging based on, for example, CR systems, direct and indirect flat panel-detector based systems.
This document excludes and is not applicable to:
– DIGITAL X-RAY IMAGING DEVICES intended to be used in mammography or in dental RADIOGRAPHY;
– slot scanning DIGITAL X-RAY IMAGING DEVICES;
– COMPUTED TOMOGRAPHY or CONE-BEAM COMPUTED TOMOGRAPHY;
– photon-energy discriminating devices such as photon counting X-RAY IMAGING DEVICES;
– devices for dynamic imaging (where series of images are acquired, as in fluoroscopy or cardiac imaging).
– DIGITAL X-RAY IMAGING DEVICES intended to be used with RADIOTHERAPY beams.

标准预览图