论文部分内容阅读
本文参考IEC62464-1:2007《医用磁共振成像设备主要图像质量参数的测定》,简单介绍四肢骨关节磁共振成像系统的计量校准方法。一、校准用标准器磁场强度计,测量范围:0~3.4T,最小分度值为1×10~(-6)T。四肢骨关节磁共振专用评价模体,模体由聚甲基丙烯酸甲酯(PMMA)材料制成,外形尺寸符合四肢骨关节磁共振线圈的要求,为圆柱形,模体直径10cm,高15cm。模体包含均匀性插件、空间分辨力插件、空
This article refers to IEC62464-1: 2007 “Determination of main image quality parameters of medical magnetic resonance imaging equipment”, a brief introduction to the measurement and calibration method of bone and joint magnetic resonance imaging system of limbs. First, the calibration standard magnetic field strength meter, measuring range: 0 ~ 3.4T, the smallest sub-value of 1 × 10 ~ (-6) T. The evaluation module for limb bone and joint MRI is made of polymethylmethacrylate (PMMA). The external dimensions of the phantom are in conformity with the requirements of the magnetic resonance coil of the limbs and joints. The diameter is 10cm and the height is 15cm. Motif contains uniformity plug-in, spatial resolution plug-in, empty