StRegA: Unsupervised anomaly detection in brain MRIs using a compact context-encoding variational autoencoder. - Soumick Chatterjee; Alessandro Sciarra; Max Dünnwald; Pavan Tummala; Shubham Kumar Agrawal; Aishwarya Jauhari; Aman Kalra; Steffen Oeltze-Jafra; Oliver Speck; Andreas Nürnberger (Comput. Biol. Medicine, 2022)