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Abstract #2626

Motion Corrected Model-based Acceleration of Parameter Mapping (MOCO-MAP) for Improved Late Gd Enhancement Imaging in Cardiac MRI

Tobias Wech 1 , Felix Rtzel 1,2 , Johannes Tran-Gia 1 , Andreas Schindele 3 , Theresa Reiter 4 , Thorsten Klink 1 , Michael Braun 1,2 , Alfio Borzi 3 , Walter H. Kullmann 2 , Thorsten A. Bley 1 , and Herbert Kstler 1

1 Department of Diagnostic and Interventional Radiology, University of Wuerzburg, Wrzburg, Germany, 2 Institute of Medical Engineering, University of Applied Sciences Wrzburg-Schweinfurt, Schweinfurt, Germany, 3 Institute of Mathematics, University of Wuerzburg, Wrzburg, Germany, 4 Department of Internal Medicine I, University of Wuerzburg, Wrzburg, Germany

Late Gd enhancement imaging is a well-established tool for the determination of infarcted myocardial tissue. However, the necessity for the operator to manually adjust the effective inversion time TI prior to a LGE acquisition makes the acquisition susceptible to sub-optimal contrast between vital and necrotic tissue. The aim of this study was to incorporate a forward-backward motion correction in the model based acceleration of parameter mapping (MAP) technique to reconstruct images of multiple contrasts out of a 2D dataset acquired after a single IR preparation. The presented method allows for retrospectively selecting the desired image contrast and thus improves the flexibility of diagnostic LGE imaging.

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