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Abstract #3975

Unpaired Super-Resolution for Anisotropic MRI using a Gradient Mapping Adversarial Loss

Michele Pascale1, Vivek Muthurangu1, Javier Montalt Tordera1, and Jennifer Steeden1
1University College London, London, United Kingdom

Synopsis

Keywords: Digestive, BodyWe present a novel approach to synthesise high-resolution isotropic 3D abdominal MR images, from anisotropic 3D images in an unpaired fashion. Using a modified CycleGAN architecture with a novel gradient mapping loss, we leverage disjoint patches from the high-resolution (in-plane) data of an anisotropic volume to enforce the network generator to increase the resolution of the low-resolution (through-plane) slices. This will enable accelerated whole-abdomen scanning with high-resolution isotropic images within short breath-hold times.

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Keywords