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MR imaging of the pelvis with an endorectal-external multicoil array

✍ Scribed by Mitchell D. Schnall; Tom Connick; Cecil E. Hayes; Robert E. Lenkinski; Herbert Y. Kressel

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
375 KB
Volume
2
Category
Article
ISSN
1053-1807

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✦ Synopsis

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.

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