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英文誌(2004-)

Journal of Medical Ultrasonics

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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