栃尾 人司¹, 小西 豊¹, 中村 仁美¹, 岩崎 信広¹, 田村 周二¹, 太田 圭子¹, 曾我 登志子¹, 森本 義人¹, 橋本 隆², 梶原 建熈²

Hitoshi TOCHIO¹, Yutaka KONISHI¹, Hitomi NAKAMURA¹, Nobuhiro IWASAKI¹, Shuji TAMURA¹, Keiko OHTA¹, Toshiko SOGA¹, Yoshito MORIMOTO¹, Takashi HASHIMOTO², Tatehiro KAJIWARA²

¹神戸市立中央市民病院臨床病理科腹部超音波室, ²神戸市立中央市民病院第1外科

¹Department of Clinical Pathology, Kobe City General Hospital, ²First Department of Surgery, Kobe City General Hospital

キーワード : Breast masses, Arterial blood flow, Color Doppler imaging, Resistance index, Ultrasound

In the attempt to clarify the clinical significance of arterial blood flow analysis by ultrasonic Doppler imaging in the differential diagnosis of breast masses, we used color Doppler echography to examine 185 breast masses in 185 patients: 126 were malignant tumors; 59, benign tumors. Color Doppler imaging showed arterial blood flow in all of these lesions. Rate of detection of arterial flow with a resistance index (RI)≧1.0 within the masses was evaluated. The detection rates of arterial blood flow with RI≧1.0 were 56% and 12% in malignant and benign tumors, respectively, and the differences were statistically significant (p