バイプレーンセクタ走査式超音波診断装置を用いた前立腺生検

ULTRASOUND GUIDED BIOPSY OF THE PROSTATE WITH BIPLANE SECTA SCAN PROBE

　直腸指診，経直腸的超音波検査，前立腺特異抗原のいずれかで前立腺癌が疑われた61例を対象として，周波数可変のバイプレーンセクタ走査式経直腸的超音波プローベを用いて，前立腺癌の診断および針生検を行った。前立腺生検により，61例中38例（62％）が前立腺癌と診断された。生検後の合併症として，精巣上体炎，前立腺炎による発熱を各l例に生じた他には重篤な合併症は認められなかった。超音波ガイド前立腺生検により，小腫瘤の組織採取や体系的な前立腺生検が可能になり，今後正診率の向上が期待できる。

Sixty-one patients were evaluated by ultrasound guided biopsy of the prostate with biplane secta scan probe. The presence of prostate cancer was suspected by elevated serum prostate specific antigen or stony hard mass in digital rectal examination or irregular texture in trans-rectal ultrasound. Systematic biopsy was performed on more than three different site of each lobe. Thirty-eight (63%) patients with prostate cancer were detected. Biplane secta scan probe in this procedure were not only able to show longitudinal image and transverse image of the prostate but also guide the position of the biopsy needle.