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.
Original language | English (US) |
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Pages (from-to) | 564-566 |
Number of pages | 3 |
Journal | Radiology |
Volume | 169 |
Issue number | 2 |
DOIs | |
State | Published - Jan 1 1988 |
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging