基于模体的乳腺X线摄影质量控制中SNR变异系数的分析

沈茜刚, 柴青焕, 姜婷婷, 沈悦, 肖勤, 顾雅佳

Analysis of variation coefficient of SNR in phantom-based mammography quality control

SHEN Xigang, CHAI Qinghuan, JIANG Tingting, SHEN Yue, XIAO Qin, GU Yajia

图1 SNR的检测模体及测量ROI的位置示意图

Fig. 1 Schematic diagram of the detection phantom for SNR and the position of the measurement ROI A: Represented the signal-to-noise ratio detection module; B: The red box represented the ROI area used for calculation, and the left side of the red box was close to the chest wall side.