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Abstract #3944

Synthetic LGE Derived from Cardiac T1 Mapping for Simultaneous Assessment of Focal and Diffuse Cardiac Fibrosis

Kyungpyo Hong 1,2 , Edward VR. DiBella 1 , Eugene G. Kholmovski 1 , Ravi Ranjan 3 , Christopher J. McGann 3 , and Daniel Kim 1

1 UCAIR, Department of Radiology, University of Utah, Salt Lake City, Utah, United States, 2 Department of Bioengineering, University of Utah, Salt Lake City, Utah, United States, 3 CARMA, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, United States

While late-gadolinium-enhanced (LGE) MRI is the gold standard for detection of focal myocardial scarring, it is less effective than cardiac T1 mapping for assessment of diffuse fibrosis. We sought to derive synthetic LGE images from saturation-recovery based cardiac T1 maps for simultaneous assessment of focal and diffuse cardiac fibrosis. In 21 short-axis planes with different myocardial lesions created by RF ablation, standard and synthetic LGE images showed similar image quality and signal contrast ratio of the lesion-myocardium and blood-myocardium pairs. The new approach provides a means to simultaneously assess focal and diffuse cardiac fibrosis using cardiac T1 mapping alone.

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