Evaluation, Analysis And Designing Of A Computer-Aided Diagnostic (Cad) System For Digital Mammograms In Iran

Riahi Alam, Nader; Aghaeizade Zoroofi, Reza; Giti, Masoume; Deldari, Arian; Ahmadian, Alireza

doi:10.22041/ijbme.2007.13495

Evaluation, Analysis And Designing Of A Computer-Aided Diagnostic (Cad) System For Digital Mammograms In Iran

Document Type : Full Research Paper

Authors

Nader Riahi Alam ¹

Reza Aghaeizade Zoroofi ²

Masoume Giti ³

Arian Deldari ⁴

Alireza Ahmadian ¹

¹ Associate Professor, Medical Physics and Biomedical Engineering Department, School of Medicine, Tehran University of Medical Sciences

² Associate Professor, Electronics and Computer Science Department, Engineering School, Tehran University

³ Associate Professor, Radiology Department, School of Medicine, Tehran University of Medical Sciences

⁴ M.Sc, Research Center of Science and Technology in Medicine, Tehran University of Medical Sciences

10.22041/ijbme.2007.13495

Abstract

In this study, the need of a CAD system and its capabilities has been investigated and then a sample program for a mammographic CAD system proper to Iranian tropical patients was designed. In the first step, the analog mammographic images were digitized by 56 and 112 mm spatial resolution and then were processed by the designed sample program. Analysis and technical details for designing and implementing the program included for following steps: The capability of the program image displayer consisting of viewing four mammographic images from four breast views (RCC, RMLO, LCC, LMLO) in one window, determining breast region by background removing and other conventional preprocessing application tools; Software processing tools including theresholding, histogram, ROI determination; Patient information fields such as clinical information, conventional reporting section as used in radiological department in Iran; Computer-aided diagnostic section including proper diagnostic processing algorithm to automatic detection of breast abnormality. For instance the application of wavelet and fuzzy logic for detecting malignant clusters of microcalcification. The introduced mammographic CAD system can provide the collection, organizing and the availability of the patient local information. Therefore by using the prepared database the evaluation of the sensitivity and specifity of the detecting algorithm for comparison of different research methods would be possible.

Keywords

CAD

Digital Mammograms

Microcalcification

Image Displayer Softwarwe

image processing

Subjects

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