YY/T 0482-2010 in English

本标准规定了为测定许多主要的医用磁共振设备图像质量参数的测量程序。在本标准中陈述的测量程序适用于:
———在验收试验时进行质量评价;
———在稳定性试验时进行质量保证。
另外,在本标准中所规定的测量程序对型式试验也是有帮助的,尽管这不是本标准的目的。
本标准不适用于:
———在验收试验和稳定性试验时进行性能等级的确定;
———大于4T的高场磁共振设备的图像质量评价,除非另有说明;
———受磁共振兼容性问题影响的图像质量;
———特殊诊断流程,如血流成像、灌注、扩散、放疗和图像引导治疗的应用;
———型式试验。

Scope

This standard specifies measurement procedures for the determination of many major image quality parameters of medical magnetic resonance equipment. The measurement procedures stated in this standard are suitable for: quality evaluation during acceptance tests; quality assurance during stability tests. In addition, the measurement procedures specified in this standard may also be helpful for type testing, although this is not the purpose of this standard. This standard does not apply to: Determination of performance levels during acceptance tests and stability tests; Image quality evaluation of high-field magnetic resonance equipment greater than 4T, unless otherwise stated; Image quality affected by magnetic resonance compatibility issues; Special Diagnostic procedures such as flow imaging, perfusion, diffusion, radiotherapy and application of image-guided therapy; type testing. The scope of this standard is also limited to measuring image quality characteristics on test molds and not on patient images. The measurement procedures specified in this standard are intended for: a) manufacturers who declare that they can perform acceptance tests and stability tests according to the methods described in this standard; b) laboratories that confirm the performance of magnetic resonance equipment according to the methods described in this standard; c) the regulatory authority, capable of complying with this standard, and d) the responsible body, willing to perform acceptance tests and stability tests of the methods described in this standard. The main image quality parameters and measurement methods defined in this standard are: signal-to-noise ratio, uniformity, slice thickness and slice profile, geometric distortion, spatial resolution and ghosting.