三神 一哉¹, 大江 宏², 中川 修一¹, 杉本 浩造¹, 渡辺 泱¹

Kazuya MIKAMI¹, Hiroshi OHE², Shuichi NAKAGAWA¹, Kozo SUGIMOTO¹, Hiroki WATANABE¹

¹京都府立医科大学泌尿器科学教室, ²京都第二赤十字病院

¹Department of Urology Kyoto Prefectural University of Medicine, ²Kyoto 2nd Red Cross Hospital

キーワード : Bladder cancer, CT, MRI, Staging, Transurethral ultrasonography

For 80 patients with bladder cancer treated with transurethral resection (TUR) or total cystectomy from January 1990 to December 1992, transurethral sonography (TUUS, 68 patients), CT (64 patients) and MRI (28 patients) were performed for tumor staging before surgery. Rate of detection was TUUS, 93% (63/68); CT, 77% (49/64); and MRI, 82% (23/28). TUR is commonly performed for T1 cancer, while total cystectomy is the treatment of choice when lesions are T2 or over. Staging diagnosis between T1 and T2 is thus very important. Sensitivity for superficial cancer (T1) was 68% in TUUS, 25% in CT, and 62% in MRI. Both TUUS and MRI were useful for local staging.