A silent echo‐planar spectroscopic imaging readout with high spectral bandwidth MRSI using an ultrasonic gradient axis
Edwin Versteeg,
Kyung Min Nam,
Dennis W. J. Klomp
et al.
Abstract:PurposeWe present a novel silent echo‐planar spectroscopic imaging (EPSI) readout, which uses an ultrasonic gradient insert to accelerate MRSI while producing a high spectral bandwidth (20 kHz) and a low sound level.MethodsThe ultrasonic gradient insert consisted of a single‐axis (z‐direction) plug‐and‐play gradient coil, powered by an audio amplifier, and produced 40 mT/m at 20 kHz. The silent EPSI readout was implemented in a phase‐encoded MRSI acquisition. Here, the additional spatial encoding provided by t… Show more
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