Phase alignment of multiple surface coil data for reduced bandwidth and reconstruction requirements

Multiple element surface coils are often used in clinical MRI to increase the image signal-to-noise ratio (S/N). Use of multicoils typically requires increased net sampling bandwidth and data processing for each coil element. A phase-alignment technique is described which combines the signals from a...

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Bibliographic Details
Published inMagnetic resonance in medicine Vol. 38; no. 6; p. 1003
Main Authors Debbins, J P, Felmlee, J P, Riederer, S J
Format Journal Article
LanguageEnglish
Published United States 01.12.1997
Subjects
Magnetic Resonance Imaging - instrumentation
Magnetic Resonance Imaging - methods
Phantoms, Imaging
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Summary:Multiple element surface coils are often used in clinical MRI to increase the image signal-to-noise ratio (S/N). Use of multicoils typically requires increased net sampling bandwidth and data processing for each coil element. A phase-alignment technique is described which combines the signals from all coil elements before image reconstruction, greatly relaxing the technical requirements of the standard multicoil methods. Hardware and software implementations allow reduction of the reconstruction requirement to that of a single coil. The hardware implementation additionally allows a significant reduction in the net sampling bandwidth. The method is applicable to high speed MRI techniques, as demonstrated in phantoms and volunteers.
ISSN:0740-3194
DOI:10.1002/mrm.1910380621