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英文誌(2004-)

Journal of Medical Ultrasonics

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1990 - Vol.17

Vol.17 No.02

Original Article(原著)

(0188 - 0194)

乳腺超音波診断における縦横比の再検討

Reconsideration of the Depth⁄Width Ratio of the Ultrasonographic Criteria for Breast Lesions

福田 健1, 豊島 隆1, 小野地 章一1, 伊藤 順造2, 里見 孝弘2

Ken FUKUDA1, Takashi TOSHIMA1, Shoichi ONOCHI1, Junzo ITOH2, Takahiro SATOMI2

1仙北組合総合病院外科, 2いわき市立総合磐城共立病院外科

1Senboku Kumiai General Hospital, 2Iwaki Kyoritsu General Hospital

キーワード : Breast Carcinoma, Ultrasonography, Depth⁄Width Ratio

The depth⁄width ratio is only one quantitative Ultrasonographic diagnostic criteria of seven criteria used in diagnosing breast lesions. Its diagnostic value, however has not been fully established, because a method of measuring the depth⁄width ratio has not been clearly defined. The purpose of this study is to find the most useful method of measuring the depth⁄width ratio.
In our institute, the depth⁄width ratio was measured in both the long and short axial sections of breast tumors. Judgement of malignancy was determined by the depth⁄width ratio, which was greater than 0.7 in the long axial d⁄w and 0.8 in the short axial d⁄w. Sensitivity, specificity and accuracy were then compared between the long–axial depth⁄width ratio and the short–axial depth⁄width ratio. The diagnostic accuracy of the short–axial depth⁄width ratio was statistically greater than that of the long–axial depth⁄width ratio.
In conclusion, the depth⁄width ratio should be measured in both short and long axial sections of breast tumor, and should be stated clearly. In our study subjects, the short axial depth⁄width ratio was statistically excellent in diagnostic accuracy.