2640
Unsupervised Tag Removal in Cardiac Tagged MRI using Robust Variational Autoencoder
Botian Xu1 and John C. Wood1,2
1Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, United States, 2Division of Cardiology, Children's Hospital Los Angeles, Los Angeles, CA, United States
Post processing of cardiac tagged MRI has always been challenging because of poor SNR and image artifact. We treat tags as anomalies and employ robust variational autoencoder (RVAE), which is more robust to outliers, to generate tag-free results from cardiac tagged images.
Fig. 1. The four chamber view of ground truth and the recovered images from the simulated tagged images. Top row: the original size of the image; bottom row: magnified image of the highlighted area.
Fig. 2. The four chamber view of real tagged image and the recovered results. Top row: the original size of the image; bottom row: magnified image of the highlighted area.