Staging of bladder tumors by transrectal ultrasonotomography and U.I. Octoson.

The staging of bladder tumors was performed in 100 cases by transrectal ultrasonotomography and in 44 cases by U.I. Octoson. Complete agreement between histology and ultrasound was obtained in 80% of the cases by the former method and in 73% by the latter method for tumors arising from the corpus of the bladder. However, agreement was obtained in only 38% of the cases by the former method and in 59% by the latter method for tumors arising from the apex and fundus of the bladder. The possibility of improving the agreement for tumors in the apex and fundus by introducing real-time transrectal linear scanning is suggested.