One-Heartbeat Cine MRI with Implicit Neural Representations Reconstruction

Le résumé fourni par la source

Motivation: Cardiac cine MRI is the gold standard for cardiac functional assessment but requires acquiring several slices under multiple breath-holds, leading to limited number of cardiac phases, patient fatigue and misregistration between slices. Goal(s): To develop a novel undersampled reconstruction based on Implicit Neural Representations (INR) to enable continuous cardiac cine MRI in a single heartbeat. Approach: INRs allow implicitly regularized reconstruction of radial cardiac cine MRI without ECG gating. The proposed method is compared to a fully sampled acquisition and iterative SENSE in a healthy subject. Results: The proposed approach shows comparable results to the fully sampled images but offering higher temporal resolution. Impact: The proposed method allows implicitly regularized single heartbeat reconstruction of radial cardiac cine MRI without ECG gating, offerings potential improvements in cardiac cine acquisition efficiency and patient comfort.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.