泌尿器科領域における体表面走査超音波診断の経験

Abstract

後腹膜腔, 骨盤腔, 陰嚢内の占居性病変87例の診断に, リニア電子走査型超音波診断装置を利用し良好な成績を得た.体表面走査超音波診断法は, 後腹膜腔の病変では, 腫瘍(≧2.5 cm), 嚢胞(≧2 cm)とX線透過性結石の診断や, 無機能腎の描出に, 骨盤腔内の病変では, 膀胱腫瘍(≧0.5 cm)や前立腺癌の形態診断, 前立腺肥大症の体積把握に, 陰嚢内の病変では, 腫瘍(≧1 cm), 嚢胞(≧1 cm), 水瘤と血瘤の診断に有効である.本法は, 1)非被爆性, 2)腎機能, 造影剤に依存せず, 任意の断層像を得る点, 3)呼吸性移動や血管性拍動や体位変換を利用した動的情報が診断に利用できる点で従来の診断法を補充するだけでなく, 効率良く多臓器の形態診断が可能でscreeningの手段とし期待できる

To evaluate its diagnostic availability in urology, transabdominal and scrotal ultrasonographic examination was made on 87 patients who had been admitted to our hospital for space occupying lesions. In retroperitoneal lesions, adrenal tumors and renal tumors greater than 2.5 cm could be detected by this examination. In pelvic lesions, bladder tumors greater than 0.5 cm were demonstrated and prostatic carcinoma with heterogeneous echotexture and irregular margin was discriminated from BPH. Not only could fluid-filled scrotal lesions larger than 1.0 cm be distinguished from solid mass lesions, but the intrascrotal anatomy could also be demonstrated in detail. Because of its safety, flexibility, and accuracy in detecting space occupying lesions, this examination could be a useful screening test in urology. Representative cases we experienced are presented.