Wrist: Improved MR imaging with optimized transmit-receive coil design

Armen Kocharian, Mark C. Adkins, Kimberly K. Amrami, Kiaran P. McGee, Peggy A. Rouleau, Doris E. Wenger, Richard L. Ehman, Joel P. Felmlee

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


The optimized wrist coil was designed and built as a transmit-receive birdcage coil for 1.5-T magnetic resonance (MR) imaging. Phantom studies were conducted to compare the optimized design with custom-designed and commercially available phased-array wrist coils and showed a 50%-90% improvement in signal-to-noise ratio (SNR). Blinded review of wrist images obtained in six volunteers showed that the optimized birdcage coil was preferred in 75% of the comparisons. An optimized birdcage coil designed for wrist imaging has improved both SNR and uniformity compared with those with a phased-array coil with the same geometry.

Original languageEnglish (US)
Pages (from-to)870-876
Number of pages7
Issue number3
StatePublished - Jan 1 2002


  • Magnetic resonance (MR), coils
  • Magnetic resonance (MR), technology
  • Wrist, MR

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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