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Abstract #0572

Single Breath Hold Whole Heart Cine MRI With Iterative Groupwise Cardiac Motion Compensation and Sparse Regularization (kt-WiSE)

Javier Royuela-del-Val 1 , Muhammad Usman 2 , Lucilio Cordero-Grande 2 , Federico Simmross-Wattenberg 1 , Marcos Martn-Fernndez 1 , Claudia Prieto 2 , and Carlos Alberola-Lpez 1

1 Laboratorio de Procesado de Imagen, Universidad de Valladolid, Valladolid, Valladolid, Spain, 2 Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom

Multislice 2D (M2D) CINE MRI is a clinical gold standard for the assessment of ventricular volumes and cardiac function. However, this acquisition currently needs to be performed during several breath-holds, leading to slice-misalignment and long scans duration. In this work we propose a novel undersampled reconstruction approach to perform M2D whole heart CINE MRI in a single breath hold, where each slice is acquired during a single cardiac cycle. The proposed method, which we call kt-WiSE, is based on compressed sensing (CS) and a groupwise temporal registration algorithm for the estimation and compensation of the motion of the heart.

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