英文誌（2004-）
Journal of Medical Ultrasonics
1995 - Vol.22
Vol.22 No.01
Original Article（原著）
（0003 - 0017）
乳癌の音響組織特性に関する研究-組織型と周波数依存減衰，エコー輝度，縦横比との関連について―
Studies of Acoustic Tissue Characterization of Breast Carcinomas: Relationship between Pathological Findings, Frequency-Dependent Attenuation, Echo Intensity, and Depth/Width Ratio
森 博昭, 伊東 紘一, 谷口 信行, 川井 夫規子, 入江 喬介, 金澤 暁太郎, 大塚 紳, 水沼 洋文
Hiroaki MORI, Kouichi ITOH, Nobuyuki TANIGUCHI, Fukiko KAWAI, Takasuke IRIE, Kyoutaro KANAZAWA, Shin OHTSUKA, Hirofumi MIZUNUMA
自治医科大学臨床病理学教室
Department of Clinical Pathology Jichi Medical School
キーワード : Breast carcinoma, Ultrasound, Echo intensity, Frequency-dependent attenuation (FDA), Tissue characterization
The spectral-shift zero-crossing method was used to determine frequency-dependent attenuation (FDA) of invasive ductal carcinomas of the breast in vivo. FDA values were measured in 68 breast carcinomas: 25 scirrhous carcinomas, 20 solid-tubular carcinomas, 9 papillotubular carcinomas, 7 medullary carcinomas, 4 lobular carcinomas, and 3 other specific types of carcinoma. Mean attenuation value of the scirrhous carcinomas was 2.38 dB/cm/MHz; that of the solid-tubular carcinomas, 1.44 dB/cm/MHz; and that of the papillotubular carcinomas, 0.87 dB/cm/MHz. Statistical analysis using the unpaired t-test showed significant differences between FDA values of scirrhous carcinomas and those of solid-tubular carcinomas (p