Quantitative expression of microcalcification distribution in mammograph by using fractal dimension

Author

Yamada, Koji ; Yabashi, Seiji ; Hata, Masayasu

Author_Institution

Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Japan

fYear

1992

fDate

16-20 Nov 1992

Firstpage

92

Abstract

The authors discuss microcalcification observed in a mammograph which is important in diagnosis of early breast cancer. After emphasizing the digitized mammograph images by Laplacian operation, a threshold processing was applied to extract the microcalcifications. Although microcalcification opacity exists for both malignant and benign cases, there were differences in the distribution and the numbers of opaque points. To give a quantitative expression for the microcalcification, the data were evaluated by using fractal dimension. As a result of processing 25 cases, including 10 benign cases, up to 14 out of 15 malignant cases were able to be separated using the fractal dimension

Keywords

diagnostic radiography; fractals; medical image processing; Laplacian operation; breast cancer; fractal dimension; mammograph; microcalcification distribution; microcalcification opacity; Biomedical imaging; Breast cancer; Computed tomography; Data mining; Ducts; Fractals; Laplace equations; Neoplasms; Pixel; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Singapore ICCS/ISITA '92. 'Communications on the Move'

Print_ISBN

0-7803-0803-4

Type

conf

DOI

10.1109/ICCS.1992.254933

Filename

254933