DEEP FACTOR MODEL: A NOVEL APPROACH FOR MOTION COMPENSATED MULTI-DIMENSIONAL MRI

Proc IEEE Int Symp Biomed Imaging. 2023 Apr:2023:10.1109/isbi53787.2023.10230725. doi: 10.1109/isbi53787.2023.10230725. Epub 2023 Sep 1.

Abstract

Recent quantitative parameter mapping methods including MR fingerprinting (MRF) collect a time series of images that capture the evolution of magnetization. The focus of this work is to introduce a novel approach termed as Deep Factor Model(DFM), which offers an efficient representation of the multi-contrast image time series. The higher efficiency of the representation enables the acquisition of the images in a highly undersampled fashion, which translates to reduced scan time in 3D high-resolution multi-contrast applications. The approach integrates motion estimation and compensation, making the approach robust to subject motion during the scan.

Keywords: Motion Correction; Multi-Contrast.