基于虚拟线圈和GRAPPA增强网络的PMRI方法

高照耀, 张展, 胡亮亮, 许光宇, 周胜, 胡雨欣, 林子捷, 周超

PMRI Image Reconstruction Method Based on Virtual Coils and GRAPPA-enhanced Network

GAO Zhaoyao, ZHANG Zhan, HU Liangliang, XU Guangyu, ZHOU Sheng, HU Yuxin, LIN Zijie, ZHOU Chao

表1 不同算法的评价指标对比结果

Table 1 Comparison of evaluation metrics for different algorithms

ACS R 算法 NRMSE SSIM PSNR 16 4 ZF 0.3311 0.8475 23.8473 GRAPPA 0.0240 0.9248 35.2355 RAKI 0.0757 0.9282 30.2510 rRAKI 0.0702 0.9391 30.5825 本文方法 0.0108 0.9679 38.6888 10 5 ZF 0.6210 0.7924 21.1159 GRAPPA 0.0787 0.8544 30.0844 RAKI 0.2532 0.7941 25.0115 rRAKI 0.1954 0.7880 26.1367 本文方法 0.0226 0.9547 35.0208 18 6 ZF 0.2651 0.8599 24.2725 GRAPPA 0.1346 0.8069 27.7540 RAKI 0.0714 0.9071 29.9671 rRAKI 0.0967 0.8927 28.6522 本文方法 0.0229 0.9518 34.8806 24 8 ZF 0.3113 0.8669 24.1142 GRAPPA 0.1516 0.8021 27.2378 RAKI 0.1941 0.8215 26.1653 rRAKI 0.0984 0.8536 29.1153 本文方法 0.0599 0.9205 31.2673 30 10 ZF 0.3365 0.8723 23.7771 GRAPPA 0.1391 0.8205 27.6127 RAKI 0.2295 0.8084 25.4376 rRAKI 0.1906 0.7841 26.2441 本文方法 0.0982 0.9323 29.1251 30 15 ZF 0.3021 0.8749 24.1621 GRAPPA 0.1606 0.8219 26.9897 RAKI 0.2651 0.8748 24.7297 rRAKI 0.1834 0.8605 26.3309 本文方法 0.0781 0.9231 30.0419