[Magnetic resonance with intrarectal coil in the study of the prostate].

The objective of this study was to determine the usefulness of the endorectal surface coil in the evaluation of the prostate. The endorectal surface coil provide more detailed visualization of the prostate and periprostatic structures than the body coil. Seminal vesicle architecture and the prostatic capsula are well seen on all of the endorectal coil images thus, disruption of the capsule on the endorectal coil images could be used as a sign of capsular invasion. Furthermore, focal thickening of the tubular walls on the endorectal coil images is considered to be evidence of early seminal vesicle invasion. The limits are represented essentially by the dimension of the endorectal surface coil.