Accelerating cardiac cine MRI using a deep learning-based ESPIRiT reconstruction.

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Christopher M SandinoJoseph Y Cheng

Abstract

To propose a novel combined parallel imaging and deep learning-based reconstruction framework for robust reconstruction of highly accelerated 2D cardiac cine MRI data. We propose DL-ESPIRiT, an unrolled neural network architecture that utilizes an extended coil sensitivity model to address SENSE-related field-of-view (FOV) limitations in previously proposed deep learning-based reconstruction frameworks. Additionally, we propose a novel neural network design based on (2+1)D spatiotemporal convolutions to produce more accurate dynamic MRI reconstructions than conventional 3D convolutions. The network is trained on fully sampled 2D cardiac cine datasets collected from 11 healthy volunteers with IRB approval. DL-ESPIRiT is compared against a state-of-the-art parallel imaging and compressed sensing method known as l 1 -ESPIRiT. The reconstruction accuracy of both methods is evaluated on retrospectively undersampled datasets (R = 12) with respect to standard image quality metrics as well as automatic deep learning-based segmentations of left ventricular volumes. Feasibility of DL-ESPIRiT is demonstrated on two prospectively undersampled datasets acquired in a single heartbeat per slice. The (2+1)D DL-ESPIRiT method produces higher f...Continue Reading

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Citations

Aug 25, 2020·Journal of Magnetic Resonance Imaging : JMRI·Akshay S ChaudhariCurtis P Langlotz
Jun 9, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Florian KnollMichael P Recht
Mar 17, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Elizabeth ColeShreyas Vasanawala
Jul 10, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Thomas KüstnerRené Botnar
Jul 14, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Vahid GhodratiPeng Hu
Aug 3, 2021·Medical Image Analysis·Wenqi HuangDong Liang

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