Abstract #4440

Free-running Simultaneous 3D Cardiac T1 Mapping and Cine Imaging Using a Linear Tangent Space Alignment Model

Yanis Djebra^1,2, Thibault Marin¹, Paul Kyu Han¹, Isabelle Bloch³, Georges El Fakhri¹, and Chao Ma¹

¹Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States, ²LTCI, Telecom Paris, Institut Polytechnique de Paris, Paris, France, ³LIP6, Sorbonne University, CNRS, Paris, France

Synopsis

Cardiac T1 mapping allows assessment of tissue characteristics and functioning of the heart. However, existing methods are limited in terms of spatial resolution and coverage due to limitations in acquisition speed and the presence of cardiac and respiratory motion. This work proposes a new reconstruction framework for simultaneous, high-resolution 3D cardiac T1 mapping and cine imaging of the heart at 3T from sparsely sampled k-space data.

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