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Phase alignment of multiple surface coil data for reduced bandwidth and reconstruction requirements
Author(s) -
Debbins Josef P.,
Felmlee Joel P.,
Riederer Stephen J.
Publication year - 1997
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910380621
Subject(s) - electromagnetic coil , computer science , bandwidth (computing) , iterative reconstruction , software , noise reduction , sampling (signal processing) , imaging phantom , artificial intelligence , computer vision , optics , physics , engineering , electrical engineering , telecommunications , filter (signal processing) , programming language
Abstract 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.