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Abstract #2901

Improved perfusion-weighted images at 7T combining pTx and low B1+ Adiabatic pulses

Ícaro Agenor Ferreira de Oliveira1,2, Robin Schnabel1, Matthias JP van Osch3, Lydiane Hirschler3, and Wietske van der Zwaag1,2
1Spinoza Centre for Neuroimaging, Amsterdam, Netherlands, 2Computational Cognitive Neuroscience and Neuroimaging, Netherlands Institute for Neuroscience, Amsterdam, Netherlands, 3Radiology, Leiden University Medical Center, Leiden, Netherlands

Synopsis

Keywords: Data Acquisition, High-Field MRIA FAIR acquisition at 7T, using a TR-FOCI pulse for background suppression, was set up on a pTx (32Rx8Tx) system and on the standard (32Rx2Tx) system. CBF-imaging results were compared in terms of CBF-weighted signal intensities and drop-off with increasing thickness of the slab-selective inversion slab. The higher and more homogeneous B1 of the pTx system translated to higher CBF-weighted signal intensities. Both setups allowed functional mapping of the hand region in the motor cortex in approximately 5 minutes.

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Keywords