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Abstract #0784

An Analysis of DiffNet Reconstruction Performance in Healthy and Infarcted Cardiac Diffusion Tensor Images

Tyler E. Cork1,2, Eric Aliotta3, Michael Loecher1, Luigi E. Perotti4, and Daniel B. Ennis1

1Radiological Sciences Laboratory, Stanford University, Stanford, CA, United States, 2Bioengineering, Stanford University, Stanford, CA, United States, 3University of Virginia, Charlottesville, VA, United States, 4Radiological Sciences, University of California - Los Angeles, Los Angeles, CA, United States

Cardiac diffusion tensor imaging (cDTI) suffers from low signal-to-noise ratios, which results in tensor variability. In order to decrease tensor variability, the number of diffusion directions or number of averages must increase, consequently increasing the scan time. Recent implementations of artificial neural network (ANN) have proven that a non-linear mapping between diffusion signals and tensors is possible and can decrease tensor variability without increasing scan time. We implement an ANN tensor reconstruction for ex vivo porcine hearts to evaluate if a robust ANN diffusion tensor reconstruction is a beneficial technique to decrease tensor variability at no cost in scan time.

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