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Abstract #0010

Rapid Motion Estimation and Motion-Corrected End-to-End Deep Learning Reconstruction for 1 Heartbeat CINE

Thomas James Fletcher1, Lina Felsner1, Andrew Phair1, Gastão Cruz2, Haikun Qi3, René Botnar1,4,5,6,7, and Claudia Prieto1,5,6
1School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, 2Department of Radiology, University of Michigan, Ann Arbor, MI, United States, 3School of Biomedical Engineering, ShanghaiTech University, Shanghai, China, 4Instituto de Ingeniería Biológica y Médica, Pontificia Universidad Católica de Chile, Santiago, Chile, 5Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Santiago, Chile, 6Millenium Institute for Intelligent Healthcare Engineering iHEALTH, Santiago, Chile, 7Institute of Advanced Study, Technical University of Munich, Munich, Germany

Synopsis

Keywords: AI/ML Image Reconstruction, Cardiovascular

Motivation: Cardiac CINE provides dynamic images of the heart for morphology and function assessment. Single-heartbeat CINE enables faster acquisition times and the study of heart rate variations, but conventional reconstruction methods incur significant computational cost.

Goal(s): This study aims to speed up single-heartbeat CINE reconstruction by using deep learning reconstruction.

Approach: We propose a novel, rapid, end-to-end deep learning pipeline for motion estimation and motion-corrected single-heartbeat CINE reconstruction with golden-angle radial acquisition.

Results: The network reconstructs each CINE slice in ~40 seconds (400 times faster than state-of-the-art), with comparable image quality, achieving SSIM values ranging from 0.75 to 0.84 across cardiac phases and slices.

Impact: The proposed approach enables reconstruction of single-heartbeat golden-angle radial CINE acquisition in ~40 seconds, making it clinically feasible. Single-heartbeat CINE could reduce scan times, achieve acquisitions of multiple slices in a single breath-hold and be robust to heart rate variations.

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Keywords