解放军福州总医院 a. 医学影像中心；b. 医学工程科/福建省医学装备管理质量控制中心，福建 福州 350025
A Comparative Research on the Methods of Detecting the Percent
Integral Uniformity in MR Quality Control
XIONG Huia, CHEN Ziqiana, ZHONG Quna, XU Shangwena, XIAO Huia, FU Liyuana, Wu Jianweib, LIN Dikuib
a. Medical Image Center; b. Department of Medical Engineering, Medical Equipment Quality Control Center of Fujian Province,
Fuzhou General Hospital, Fuzhou Fujian 350025, China
Abstract：Objective To compare the difference of two methods of percent integral uniformity detection in the magnetic resonance
quality control process, and analyze their respective advantages and deficiencies for the relevant operators to choose. Methods Both
the adjustment method and the maximum and minimum value method were used to detect the percent integral uniformity (PIU)
on the MRI device respectively, and the obtained data were processed and analyzed by statistical knowledge after that. Results
The statistical results of the experimental data indicated that the two methods had good consistency (1.90, 5.32) in detecting the
PIU. Conclusion To some extent, the two methods of PIU detection can be interchangeable for each other. The time consuming
of the maximum and minimum value method is shorter and the process is simpler, but it is greatly influenced by the system noise
in measurement, therefore, the accuracy of the adjustment method is relatively high. In practical operation environment, engineers
should select suitable detection methods according to their needs.
熊晖a，陈自谦a，钟群a，许尚文a，肖慧a，付丽媛a，吴剑威b，林迪逵b. 磁共振质量控制参数中均匀度检测方法的对比研究[J]. 中国医疗设备, 2018, 33(10): 15-18.
XIONG Huia, CHEN Ziqiana, ZHONG Quna, XU Shangwena, XIAO Huia, FU Liyuana, Wu Jianweib, LIN Dikuib. A Comparative Research on the Methods of Detecting the Percent
Integral Uniformity in MR Quality Control. China Medical Devices, 2018, 33(10): 15-18.
