中國醫藥大學機構典藏 China Medical University Repository, Taiwan:Item 310903500/28957
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    题名: Objective assessment of blood stasis using computerized inspection of sublingual veins
    作者: Chiu, CC;Lan, CY;Chang, YH
    贡献者: 附設醫院;Feng Chia Univ, Inst Automat Control Engn, Taichung 40724, Taiwan;China Med Coll Hosp, Taichung, Taiwan
    日期: 2002
    上传时间: 2010-09-24 14:17:02 (UTC+8)
    出版者: ELSEVIER SCI IRELAND LTD
    摘要: Rationale and Objectives. The authors performed this study to determine whether a computer-aided diagnostic (CAD) system was suitable from one ultrasound (US) unit to another after parameters were adjusted by using intelligent selection algorithms. Materials and Methods. The authors used texture analysis and data mining with a decision tree model to classify breast tumors with different US systems. The databases of training cases from one unit and testing cases from another were collected from different countries. Regions of interest on US scans and co-variance texture parameters were used in the diagnosis system. Proposed adjustment schemes for different US systems were used to transform the information needed for a differential diagnosis. Results. Comparison of the diagnostic system with and without adjustment, respectively, yielded the following results: accuracy, 89.9% and 82.2%; sensitivity, 94.6% and 92.2%; specificity, 85.4% and 72.3%; positive predictive value, 86.5% and 76.8%; and negative predictive value, 94.1% and 90.4%. The improvement in accuracy, specificity, and positive predictive value was statistically significant. Diagnostic performance was improved after the adjustment. Conclusion. After parameters were adjusted by using intelligent selection algorithms, the performance of the proposed CAD system was better both with the same and with different systems. Different resolutions, different setting conditions, and different scanner ages are no longer obstacles to the application of such a CAD system.
    關聯: COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 69(1):1-12
    显示于类别:[台中附設醫院] 期刊論文

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