木暮 輝明¹, 原田 忠¹, 餌取 和美¹, 熊崎 匠¹, 宮形 滋¹, 松崎 章¹, 本郷 隆二¹, 高 大輔¹, 下田 次郎¹, 佐藤 良延¹, 土田 正義¹, 佐々木 秀平²

Teruaki KIGURE¹, Tadashi HARADA¹, Kazumi ETORI¹, Takumi KUMAZAKI¹, Shigeru MIYAGATA¹, Akira MATSUZAKI¹, Ryuji HONGOH¹, Daisuke KOH¹, Jiro SHIMODA¹, Yoshinobu SATOH¹, Seigi TSUCHIDA¹, Shuhei SASAKI²

¹秋田大学医学部泌尿器科, ²市立秋田総合病院泌尿器科

¹Department of Urology, Akita University School of Medicine, ²Department of Urology, Akita City Hospital

キーワード : Microwave coagulation, Prostate, Electronic sector scanning, Hyperechoic area, Acoustic shadow

We introduced a technique of transurethral microwave coagulation of the prostate under transabdominal sector scanning. In 6 patients, this method was performed in order to relieve obstructive symptoms caused by prostatic cancer. In 10 patients with prostatic hypertrophy, this procedure followed by transurethral resection (TUR) was performed in order to eliminate hemorrhage during TUR. Transabdominal sector scanning gave us useful information during the microwave coagulation procedure. With this method, we were able to find the microwave applicator clearly which had a hyperechoic area and an acoustic shadow. Moreover, we could easily distinguish coagulated areas from noncoagulated areas because the ultrasonogram showed a hyperechoic region in the coagulated area.
After the procedure, all patients with severe dysuria were able to void satisfactorily without any serious complications such as perforation or bleeding.
Our clinical results indicate that transabdominal electronic sector scanning is a useful method during microwave coagulation of the prostate.