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

Josef P. Debbins, Joel P. Felmlee, Stephen J. Riederer

Research output: Contribution to journalArticle

21 Scopus citations

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 cell. 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.

Original languageEnglish (US)
Pages (from-to)1003-1011
Number of pages9
JournalMagnetic Resonance in Medicine
Volume38
Issue number6
DOIs
StatePublished - Dec 1997

Keywords

  • MRI
  • Phased array
  • Reconstruction
  • Signal-to-noise ratio
  • Surface coil

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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