Advances in medical imaging technologies and equipment play an important role in the biomedical researches.Cross-modality image-prediction technology predicts one modal image from that of another modal.This paper presents an overview of the literatures on medical imaging prediction technology and its applications

such as predicting Computed Tomography images from Magnetic Resonance (MR) images

7T-like MR image reconstruction

and predicting positron emission tomography images.The aim is twofold:the necessity and challenge for different modality medical image prediction technology;the overview and comparison of various methods in the field.We conclude that the cross-modality image prediction based on the deep learning technology has superiority in both predicting time and precision.