Title :
Classification of microcalcifications in mammograms using artificial neural networks
Author :
Nguyen, Hung ; Hung, W.T. ; Thornton, B.S. ; Thornton, E. ; Lee, W.
Author_Institution :
Centre for Biomed. Technol., Univ. of Technol., Sydney, NSW, Australia
fDate :
29 Oct-1 Nov 1998
Abstract :
An advanced method is described for the classification of malignant and benign clustered microcalcifications in mammograms. The relevant microcalcification database contains 122 cases generated from 103 subjects. Quantitative and qualitative data was provided by the radiologists, and the pathology results were available. These data include age, six (6) qualitative parameters (shape, uniformity of size, uniformity of shape, uniformity of density, shape of cluster and distribution), and the overall impression by the radiologists. A trainable multilayer feedforward neural network has been designed to maximise collectively the sensitivity and the specificity of the classification using these qualitative parameters as inputs. Using the data set, a sensitivity of 86.1% and a specificity of 84.2% have been obtained
Keywords :
feedforward neural nets; image classification; image segmentation; mammography; medical image processing; pattern clustering; tumours; artificial neural networks; benign clustered microcalcifications; classification of microcalcifications; cluster distribution; malignant clustered microcalcifications; mammograms; microcalcification database; qualitative parameters; radiologist impression; sensitivity; shape; shape of cluster; specificity; trainable multilayer feedforward neural network; uniformity of density; uniformity of shape; uniformity of size; Artificial neural networks; Breast biopsy; Breast cancer; Calcium; Cancer detection; Databases; Intelligent networks; Neural networks; Shape; Tumors;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745619