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Abstract #4810

Fast Deep Learning Reconstruction of Interventional MRI Data with Radial, Undersampling k-Space Trajectories

Johanna Topalis1, Balthasar Schachtner1, Andreas Mittermeier1, Philipp Wesp1, Tobias Weber1,2, Anna Theresa Stüber1,2, Max Seidensticker1, Jens Ricke1, Katia Parodi3, Michael Ingrisch1, and Olaf Dietrich1
1Department of Radiology, University Hospital, LMU Munich, Munich, Germany, 2Department of Statistics, LMU Munich, Munich, Germany, 3Department of Medical Physics, Faculty of Physics, LMU Munich, Munich, Germany

Synopsis

Keywords: Image Reconstruction, Machine Learning/Artificial Intelligence, Radial Acquisition; Undersampled; MR-Guided InterventionsTo reduce the data acquisition time and increase frame rates for image guidance during percutaneous needle interventions in the liver, k-space data can be acquired with a radial, undersampling acquisition scheme. The purpose of this work was to optimize a deep learning model for the fast reconstruction of k-space data in this context. The proposed deep learning model reconstructed artificial data with a better image quality compared to conventional reconstruction. Successful reconstruction of interventional phantom data suggests its potential for application during percutaneous needle interventions in the liver.

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Keywords