Abstract #1285
Comparison of analog and digital transceiver systems for magnetic resonance imaging
Seitaro Hashimoto 1 , Katsumi Kose 1 , and Tomoyuki Haishi 2
1
University of Tsukuba, Tsukuba, Ibaraki,
Japan,
2
MRTechnology
Inc., Tsukuba, Ibaraki, Japan
Analog and digital transceivers for MRI systems were
critically evaluated under identical experimental
conditions. The MRI experiments were performed using a
4.74-Tesla vertical-bore superconducting magnet and a
high-sensitivity gradient coil probe. 3D spin-echo
images of a kumquat were acquired with and without using
a gain-stepping scan technique to extend the dynamic
range of the receiver systems. The acquired MR images
clearly demonstrated that nearly identical image quality
was obtained for both transceiver systems, but DC and
ghosting artifacts were obtained for the analog
transceiver. We therefore concluded that digital
transceivers have several advantages over the analog
transceivers.
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