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英文誌(2004-)

Journal of Medical Ultrasonics

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1998 - Vol.25

Vol.25 No.12

Original Article(原著)

(1117 - 1123)

乳房超音波診断基準の有効性の検討: 医学部学生における観察者間の一致度の解析

Usefulness of Sonographic Diagnostic Criteria For Breast Lesions: Analysis of Interobserver Agreement Among Medical Students

島本 佳寿広1, 池田 充2, 澤木 明子3, 佐竹 弘子4, 石垣 武男3

Kazuhiro SHIMAMOTO1, Mitsuru IKEDA2, Akiko SAWAKI3, Hiroko SATAKE4, Takeo ISHIGAKI3

1名古屋大学医学部保健学科放射線技術科学専攻, 2名古屋大学医学部附属病院医療情報部, 3名古屋大学医学部放射線医学教室, 4公立陶生病院放射線科

1Department of Radiological Technology Nagoya University School of Health Sciences, 2Department of Medical Information and Records Nagoya University Hospital, 3Department of Radiology Nagoya University School of Medicine, 4Department of Radiology Tosei General Hospital

キーワード : Breast diseases, Education, Kappa (<I>&#954;</I>) statistic, Mammary ultrasonography, Observer variation

To evaluate the usefulness of diagnostic criteria for breast lesions, interobserver agreement in interpreting sonographic images was analyzed using kappa (κ) statistics. After being taught basic diagnostic criteria, 22 medical students interpreted sonographic images of the breasts of 41 patients. Six sonographic features (shape, border, boundary echoes, internal echoes, posterior echoes, and bilateral shadows) and the final impression in differentiating benign from malignant lesions were scored using a five-point rating scale, and κ values of each criterion were obtained. Of the six criteria, the κ values of boundary echoes and internal echoes were significantly lower than those of the other four criteria (p