豼オ逕ー 充生¹, 小西 豊², 島田 啓子¹, 箕輪 和士¹, 豼オ逕ー 一美¹, 杤尾 人司¹, 森本 義人¹, 奥野 敏隆², 橋本 隆², 梶原 建熈²

Michio HAMADA¹, Yutaka KONISHI², Keiko SHIMADA¹, Kazushi MINOWA¹, Kazumi HAMADA¹, Hitoshi TOCHIO¹, Yoshito MORIMOTO¹, Toshitaka OKUNO², Takashi HASHIMOTO², Tatehiro KAJIWARA²

¹神戸市立中央市民病院腹部超音波室, ²神戸市立中央市民病院第1外科

¹Section of Abdominal Ultrasound Kobe City General Hospital, ²First Department of Surgery Kobe City General Hospital

キーワード : Breast tumor, Color Doppler sonography, Resistance index, Waveform analysis

Sixty-nine patients with 70 histologically comfirmed breast tumors, including 16 benign masses and 54 malignant masses were evaluated in this study. Color flow signals were detected in all tumors within the lesions using color Doppler sonography. Spectra of these flow signals were analyzed by pulsed Doppler sonography and a resistance index [RI=(maximal velocity-minimal velocity)/maximal velocity] was calculated. The RI values (0.80賊0.10) in malignant masses were significantly higher than those (0.70賊0.15) in benign masses (p