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GDCNet: Calibrationless geometric distortion correction of echo planar imaging data using deep learning
March 1, 2024, 5:47 a.m. | Marina Manso Jimeno, Keren Bachi, George Gardner, Yasmin L. Hurd, John Thomas Vaughan Jr., Sairam Geethanath
cs.CV updates on arXiv.org arxiv.org
Abstract: Functional magnetic resonance imaging techniques benefit from echo-planar imaging's fast image acquisition but are susceptible to inhomogeneities in the main magnetic field, resulting in geometric distortion and signal loss artifacts in the images. Traditional methods leverage a field map or voxel displacement map for distortion correction. However, voxel displacement map estimation requires additional sequence acquisitions, and the accuracy of the estimation influences correction performance. This work implements a novel approach called GDCNet, which estimates a …
abstract acquisition arxiv benefit cs.cv data deep learning echo eess.iv functional image images imaging loss map signal type voxel
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