Towards a complete coil array

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

A complete RF coil system, as has been previously defined, is capable of generating any steady-state RF field, at the MR frequency, that is compatible with Maxwell's equations. A coil system is complete if it is capable of generating all basis vector fields in the multipole expansion of the electromagnetic fields. A complete coil system has the potential to reach the ultimate intrinsic signal-to-noise as an MRI receiver coil. It also offers maximum flexibility in tailoring the spatial RF field distribution as an excitation coil. Here, computer simulations have been performed on array coils employing composite coil elements, assuming the current loops are small and can be approximated by magnetic dipoles. We demonstrate that a coil array can be configured to approximate a truncated complete array coil and to generate the basis magnetic vector fields up to certain orders in the multipole expansion of the electromagnetic fields.

Original languageEnglish (US)
Pages (from-to)1310-1315
Number of pages6
JournalMagnetic Resonance Imaging
Volume26
Issue number9
DOIs
StatePublished - Nov 1 2008

Keywords

  • Coil array
  • Complete RF coil
  • Magnetic resonance
  • RF coil

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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