Clinical MR imaging with a Helmholtz-type surface coil

Radiology. 1988 Nov;169(2):564-6. doi: 10.1148/radiology.169.2.3175008.

Abstract

Limited-field-of-view radio-frequency receiver antennas provide improved near-field sensitivity for magnetic resonance imaging by decreasing the antenna volume. The Helmholtz-type surface coil, consisting of two flat rings, is an organ-encompassing antenna that takes advantage of this principle to yield an improved signal-to-noise ratio (S/N). The coil was tested in a group of 50 patients and 16 healthy volunteers. Images obtained with the Helmholtz coil demonstrated quantitatively superior S/N of 2.2-fold or greater than that of comparison body coil images, as well as qualitatively superior anatomic resolution.

MeSH terms

  • Extremities / anatomy & histology
  • Female
  • Hip / anatomy & histology
  • Humans
  • Kidney / anatomy & histology
  • Magnetic Resonance Imaging / instrumentation*
  • Male
  • Models, Structural
  • Pelvis / anatomy & histology
  • Shoulder / anatomy & histology