Microwave seminar | 06 March 2023

Mr. Felix Glang
Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
Accelerated MRI at 9.4 T with electronically modulated time-varying receive sensitivities

Parallel imaging (PI) is among the most successful techniques for accelerating MRI acquisition. However, its performance is limited by the number, spatial appearance and independence of the sensitivity profiles of the employed multiple RF receive coil elements. We investigate if dynamic modulations of the receive RF coil sensitivities during image encoding can be used to improve parallel imaging, forming a novel degree of freedom in spatial encoding for MRI.
I will introduce some basic concepts of spatial encoding and parallel imaging in MRI, and show results from multiple prototype reconfigurable RF coil arrays that were custom-built for human head MRI at 9.4T.

Glang, F.; Nikulin, A. V.; Bause, J.; Heule, R.; Steffen, T.; Avdievich, N.; Scheffler, K. Accelerated MRI at 9.4 T with Electronically Modulated Time-Varying Receive Sensitivities. Magnetic Resonance in Medicine 2022, 88 (2), 742–756. https://doi.org/10.1002/mrm.29245.

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