Abstract

Accelerated MRI Reconstruction with Fourier-Constrained Diffusion Bridges
Fourier-constrained diffusion bridges for accelerated MRI reconstruction. Oral presentation — Summa Cum Laude Merit Award.
Usama Mirza, Onat Dalmaz, Hasan A Bedel, Gökberk Elmas, Alper Güngör, Tolga Çukur
Code
MRI Reconstruction with Fourier-Constrained Diffusion Bridges
FDB learns a multi-step mapping from undersampled to fully-sampled MRI data via noise addition and random frequency removal, outperforming prior diffusion priors on brain MRI.
Usama Mirza, Onat Dalmaz, Hasan A Bedel, Gökberk Elmas, Alper Güngör, Tolga Çukur
Code
A Personalized Federated Learning Approach for Multi-Contrast MRI Translation
A personalized federated learning approach for multi-contrast MRI translation across institutions with heterogeneous data.
Onat Dalmaz, Usama Mirza, Gökberk Elmas, Muzaffer Özbey, Salman UH Dar, Emir Ceyani, Salman Avestimehr, Tolga Çukur
pFLSynth: Personalized Federated Learning of Image Synthesis in Multi-Contrast MRI
pFLSynth uses site- and task-specific latents, personalization blocks and partial model aggregation to train one synthesis model that generalizes across sites and contrasts.
Onat Dalmaz, Usama Mirza, Gökberk Elmas, Muzaffer Özbey, Salman UH Dar, Emir Ceyani, Salman Avestimehr, Tolga Çukur