https://scholars.lib.ntu.edu.tw/handle/123456789/115497
標題: | BREAST CANCER DIAGNOSIS USING THREE-DIMENSIONAL ULTRASOUND AND PIXEL RELATION ANALYSIS | 作者: | Chen, Wei-Ming Chang, Ruey-Feng Moon, Woo-Ktung Chen, Dar-Ren |
關鍵字: | 3-D breast ultrasound;Pixel relation analysis;Breast tumor;Neural network | 公開日期: | 2003 | 起(迄)頁: | 1027-1035 | 來源出版物: | Ultrasound in Medicine & Biology | 摘要: | Because ultrasound (US) imaging offers benefits compared with other medical imaging techniques, it is used routinely in nearly all hospitals and many clinics. However, the surface features and internal structure of a tumor are not easily demonstrated simultaneously using the traditional 2-D US. The newly developed three-dimensional (3-D) US can capture the morphology of a breast tumor and overcome the limitations of the traditional 2-D US. This study deals with pixel relation analysis techniques for use with 3-D breast US images and compares its performance to 2-D versions of the images. The 3-D US imaging was performed using a Voluson 530 scanner. The rectangular subimages of the volume-of-interest (VOI) were manually selected and the selected VOIs were outlined to include the entire extent of the tumor margin. The databases in this study included 54 malignant and 161 benign tumors. All solid nodules at US belong over C3 (probably benign) according to ACR BI-RADS category. All or some selected 2-D slices were used separately to calculate the diagnosis features for a 3-D US data set. We have proposed and compared several different methods to extract the characteristics of these consecutive 2-D images. As shown in our experiments, the diagnostic results were better than those of the conventional 2-D US. In the experiments, the area index Az under ROC curve of the proposed 3-D US method can achieve 0.9700 0.0118, but Az of the 2-D US is only 0.8461 0.0315. The p value of these two Az differences using z test is smaller than 0.01. Furthermore, we can find that the features from only several slices are enough to provide good diagnostic results if the adopted features are modified from the 2-D features. (E-mail:dlchen88@ms13.hinet.net) |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/20060927122917164483 | 其他識別: | 20060927122917164483 |
顯示於: | 資訊工程學系 |
檔案 | 描述 | 大小 | 格式 | |
---|---|---|---|---|
umb0307-1.pdf | 345.37 kB | Adobe PDF | 檢視/開啟 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。