Augment low-field intra-operative MRI with preoperative MRI using a hybrid non-rigid registration method. - Chengjun Yao; Yixun Liu; Jianhua Yao 001; Dongxiao Zhuang; Jinsong Wu 002; Zhiyong Qin; Ying Mao 002; LiangFu Zhou (Comput. Methods Programs Biomed., 2014)