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Abstract #4974

Improving cardiac cine MRI using a deep learning-based ESPIRiT reconstruction with self attention

Terrence Jao1, Christopher Sandino2, and Shreyas Vasanawala1
1Department of Radiology, Stanford University, Stanford, CA, United States, 2Department of Electrical Engineering, Stanford University, Stanford, CA, United States

Synopsis

Keywords: Heart, Machine Learning/Artificial Intelligence, Deep Learning, Unrolled, Self Attention, CINEA deep learning based ESPIRiT (DL-ESPIRiT) was recently proposed to reconstruct dynamic MRI data with higher reconstruction accuracy. However, the method still has difficulty resolving fine anatomic structures. We propose incorporating self-attention to the network using a computationally lightweight squeeze-excitation block (DL-ESPIRiT SE), which uses global information to select more important features while suppressing less important ones. We demonstrate improved reconstruction with DL-ESPIRiT SE, which is most pronounced during faster cardiac motion such as in ventricular ejection.

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Keywords