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Abstract #2393

Prostate Tumor Characterization using Texture Analysis of Diffusion MRI

Dharmesh Singh1, Virendra Kumar2, Chandan J Das3, Anup Singh1,4, and Amit Mehndiratta1,4
1Centre for Biomedical Engineering, Indian Institute of Technology (IIT) Delhi, New Delhi, India, 2Department of NMR, All India Institute of Medical Sciences Delhi, New Delhi, India, 3Department of Radiology, All India Institute of Medical Sciences Delhi, New Delhi, India, 4Department of Biomedical Engineering, All India Institute of Medical Sciences Delhi, New Delhi, India

Accurate diagnosis of prostate-cancer(PCa) remains challenging due to high false-negative rate of biopsy and low-specificity of the screening test. Computer-aided diagnosis(CAD) systems are increasingly being used for detection and diagnosis of PCa. Texture analysis has been proved to be a significant CAD tool in medical applications. The aim of this research was to investigate the role of texture parameters extracted from diffusion-weighted MRI and machine-learning classifiers in distinguishing PCa from normal peripheral-zone(PZ). The proposed methodology has achieved 93% accuracy using support-vector machine classifier. Experiments showed that the application of texture-analysis could improve the accuracy of identifying healthy and cancerous prostate-regions.

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