Abstract
Magnetic resonance (MR) images of the pelvis obtained with an endorectal coil have improved resolution relative to that of body coil images; however, they have limited spatial coverage. The sensitivity profile can be improved by using the endorectal coil combined with an external anterior coil as part of a multicoil array. If each coil is connected to a separate receiver, the individual images can be combined to provide an optimal signal‐to‐noise ratio (S/N). The authors have investigated a 5‐inch (12.7‐cm) surface coil or a two‐coil array as the anterior coil. In both of these configurations, the S/N is improved relative to that of the endorectal coil alone at distances greater than 3 cm from the endorectal coil. The anterior two‐coil array provides more lateral coverage. The improved spatial coverage available with this technique expands potential clinical applications of endorectal MR imaging.
Original language | English (US) |
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Pages (from-to) | 229-232 |
Number of pages | 4 |
Journal | Journal of Magnetic Resonance Imaging |
Volume | 2 |
Issue number | 2 |
DOIs | |
State | Published - 1992 |
Keywords
- Intracavitary coils
- Multicoil imaging
- Pelvis, MR, 80.1214
- Rectum, MR, 757.1214
- Surface coils
- Technology
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging