Mirsad Mahmutovic1, Alina Scholz1, Nicolas Kutscha1, Markus W. May1, Torsten Schlumm2, Roland Müller2, Kerrin Pine2, Luke J. Edwards2, Nikolaus Weiskopf2,3, David O. Brunner4, Harald E. Möller2, and Boris Keil1
1Institute of Medical Physics and Radiation Protection, TH Mittelhessen University of Applied Sciences, Giessen, Germany, 2Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, 3Felix Bloch Institute for Solid State Physics, Faculty of Physics and Earth Sciences, Leipzig University, Leipzig, Germany, 4Skope Magnetic Resonance Technologies AG, Zurich, Switzerland
1Institute of Medical Physics and Radiation Protection, TH Mittelhessen University of Applied Sciences, Giessen, Germany, 2Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, 3Felix Bloch Institute for Solid State Physics, Faculty of Physics and Earth Sciences, Leipzig University, Leipzig, Germany, 4Skope Magnetic Resonance Technologies AG, Zurich, Switzerland
The constructed 64-channel brain coil with integrated 16-channel field
monitoring system provided enhanced reception sensitivity and encoding power.
The combination with strong
gradients will improve diffusion-weighted imaging (DWI).
Constructed 64-channel array coil with an
incorporated 16-channel field camera system. (a) 3D model of the coil, (b)
enclosed finished coil, (c) view into the open coil.
(A) Zero-order phase and higher-order dynamic dynamic field effects; (B)
first-order read trajectory. Examples of tSNR maps (calculated from series of
20 repetitions) obtained with the 64ch coil and (C) spiral as well as (D) EPI
acquisitions. Images reconstructed from the spiral acquisitions using
concurrently monitored field information do not show evident distortions at
visual inspection. (E) Corresponding results obtained with EPI and the standard
32ch coil are shown for comparison. Note the SNR gain obtained with the 64ch
coil, in particular in cortical regions.