The role of endorectal coil MRI in patient selection and treatment planning for prostate seed implants.

Purpose: To assess the role of endorectal coil magnetic resonance imaging (MRI) staging for patients undergoing seed implantation (SI) with or without external beam radiotherapy (EBRT).

Materials And Methods: Between October 1994 and December 1998, 390 patients underwent prostate SI (98% Pd-103, 2% I-125). Seventy-six percent of patients had a prostate serum antigen (PSA) < 10, 17% had PSA of 10-20, and 7% of patients had PSA of > 20.