摘要
探究了超导3.0TMRI设备和永磁0.4TMRI设备图像均匀性和信噪比检测的对比,分析了ACR体模和SMR170体模检测结果的优劣。对于图像均匀性检测,ACR体模具有更高的灵敏度、真实度和更简便的检测流程。对于信噪比检测,需有效结合MRI设备性能,选择更合适的体模,建立相应的信噪比处置界限。
To explore the comparison of implementing detection for Image Uniformity and Signal-to-Noise Ratio between 3.0T superconducting MRI equipment and 0.4T permanent MRI equipment,and analyze the differences of test results between ACR phantom and Magphan SMR170 phantom.ACR phantom has higher sensitivity,authenticity and more convenient detection process in testing UN.For SNR detection,it is necessary to effectively combine of the equipment performance,select the more appropriate phantom and establish the action limits of SNR.
作者
郁佳琦
陆翊铭
金文燕
徐盛洋
陈珊珊
YU Jiaqi;LU Yiming;JIN Wenyan;XU Shengyang;CHEN Shanshan
出处
《计量与测试技术》
2021年第12期16-19,共4页
Metrology & Measurement Technique
基金
教育教学改革专项——创新创业训练项目(国家级项目)(项目编号:A3-0200-21-309010-354)。
关键词
MRI
质量控制
图像均匀性
信噪比
MRI
quality control
image uniformity
signal-to-noise ratio
