Magnetic Resonance in Medical Sciences
Online ISSN : 1880-2206
Print ISSN : 1347-3182
ISSN-L : 1347-3182
Technical Notes
Comparison of Analog and Digital Transceiver Systems for MR Imaging
Seitaro HASHIMOTOKatsumi KOSE Tomoyuki HAISHI
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JOURNAL OPEN ACCESS

2014 Volume 13 Issue 4 Pages 285-291

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Abstract

We critically evaluated analog and digital transceivers for magnetic resonance (MR) imaging systems under identical experimental conditions to identify and compare their advantages and disadvantages. MR imaging experiments were performed using a 4.74-tesla vertical-bore superconducting magnet and a high sensitivity gradient coil probe. We acquired 3-dimensional spin echo images of a kumquat with and without using a gain-stepping scan technique to extend the dynamic range of the receiver systems. The acquired MR images clearly demonstrated nearly identical image quality for both transceiver systems, but DC and ghosting artifacts were obtained for the analog transceiver system. We therefore concluded that digital transceivers have several advantages over the analog transceivers.

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© 2014 by Japanese Society for Magnetic Resonance in Medicine
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