Transferring thrombus labels from CTPA to non-contrast CT via accurate pulmonary vessel registration: a critical step toward AI- based pulmonary embolism detection - Gong, Xiaobin; Jia, Bingzhen; Zhang, Yuyang; Tan, Baolin; He, Anwei; Ye, Zhaoxiang; Xing, Zhiheng (Quantitative Imaging in Medicine and Surgery, 2026)