Using Block-based Multiparameter Representation to Detect Tumor Features on T2-weighted Brain MRI Images

P. Y. Lau; S. Ozawa; F. C. T. Voon

doi:10.1055/s-0038-1625414

Methods of Information in Medicine, Table of Contents

Methods Inf Med 2007; 46(02): 236-241
DOI: 10.1055/s-0038-1625414

Original Article

Schattauer GmbH

Using Block-based Multiparameter Representation to Detect Tumor Features on T2-weighted Brain MRI Images

Authors

P. Y. Lau

¹Department of Information and Computer Science, Keio University, Yokohama, Japan

³Department of Computer Engineering, Universiti Tunku Abdul Rahman, Kuala Lumpur, Malaysia
S. Ozawa

¹Department of Information and Computer Science, Keio University, Yokohama, Japan
F. C. T. Voon

²Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore

Abstract

Summary

Objective : The objective of this paper is to present an analytical method for digitized images to detect tumors or lesions in a medical decision support system.

Method : The authors have developed a simple method of tumor detection using three parameter values: edge (E), gray (G), and contrast (H). The method proposed here first studied the VHD (Visible Human Dataset) input brain feature using EGH parameters that divided the input image into fixed-size blocks (templates). The EGH parameters for the feature blocks were calculated and parameterized to detect the occurrences of abnormalities. These abnormal blocks were then marked for interpretation.

Results : Measurements of the following medical dataset were performed: 1) different time-interval images from the same dataset, 2) different brain disease images from multiple datasets, and 3) multiple slice images from multiple datasets. Our experimental results illustrate the ability of our proposed technique to detect tumor blocks with conceptual simplicity and computational efficiency.

Conclusion : In this paper, we present output examples from our prototype system, comparing detection accuracy and system performance.

Keywords

Decision support system - multiparameter representation - brain tumor detection - image analysis

Full Text

References

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