MR to ultrasound image registration with segmentation‐based learning for HDR prostate brachytherapy

Purpose Propagation of contours from high‐quality magnetic resonance (MR) images to treatment planning ultrasound (US) images with severe needle artifacts is a challenging task, which can greatly aid the organ contouring in high dose rate (HDR) prostate brachytherapy. In this study, a deep learning approach was developed to automatize this registration procedure for HDR brachytherapy practice. Methods Because of the lack of training labels and...