Breast tumor classification based on shape features of ultrasonic images
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Breast tumor classification based on shape features of ultrasonic images
Optics and Precision EngineeringVol. 14, Issue 2, Pages: 333-340(2006)
作者机构:
1. 复旦大学 电子工程系 上海,200433
2. 复旦大学 附属华山医院超声科 上海,200040
作者简介:
基金信息:
DOI:
CLC:TP391.4
Received:24 August 2005,
Revised:19 October 2005,
Published Online:30 April 2006,
Published:30 April 2006
稿件说明:
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WANG Yuan-yuan, SHEN Jia-lin, WANG Yong, et al. Breast tumor classification based on shape features of ultrasonic images[J]. Optics and precision engineering, 2006, 14(2): 333-340.
DOI:
WANG Yuan-yuan, SHEN Jia-lin, WANG Yong, et al. Breast tumor classification based on shape features of ultrasonic images[J]. Optics and precision engineering, 2006, 14(2): 333-340.DOI:
Breast tumor classification based on shape features of ultrasonic images
The shape features of breast tumor in ultrasonic images are of great significance in the diagnosis of breast cancer. A computer-aided diagnosis system based on shape features was proposed to increase the accuracy of ultrasonic diagnosis of breast tumors. The tumor boundaries were firstly obtained using the gray-level threshold segmentation and dynamic programming and three shape features were subsequently calculated. Finally
the Fisher linear discriminant
neural network with error back propagation algorithm and radial basis function network were applied respectively to classify breast tumors as benign or malignant. Experiments on 157 cases (including 81 benign tumors and 76 malignant ones) show that all of three classifiers can achieve a higher precision
and the accuracy
sensitivity and specificity are as high as 94.95 %
95.74% and 94.23 % respectively for both of two neural networks. Therefore
it is concluded that the proposed system based on shape features performs well in the ultrasonic classification of breast tumors as benign or malignant.
关键词
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references
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