Comput Math Methods Med - Smart spotting of pulmonary TB cavities using CT images.

Tópicos

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Resumo

One third of the world's population is thought to have been infected with mycobacterium tuberculosis (TB) with new infection occurring at a rate of about one per second. TB typically attacks the lungs. Indication of cavities in upper lobes of lungs shows the high infection. Traditionally, it has been detected manually by physicians. But the automatic technique proposed in this paper focuses on accurate detection of disease by computed tomography (CT) using computer-aided detection (CAD) system. The various steps of the detection process include the following: (i) image preprocessing, which is done by techniques such as resizing, masking, and Gaussian smoothening, (ii) image egmentation that is implemented by using mean-shift model and gradient vector flow (GVF) model, (iii) feature extraction that can be achieved by Gradient inverse coefficient of variation and circularity measure, and (iv) classification using Bayesian classifier. Experimental results show that its perfection of detecting cavities is very accurate in low false positive rate (FPR).

Resumo Limpo

one third world popul thought infect mycobacterium tuberculosi tb new infect occur rate one per second tb typic attack lung indic caviti upper lobe lung show high infect tradit detect manual physician automat techniqu propos paper focus accur detect diseas comput tomographi ct use computeraid detect cad system various step detect process includ follow imag preprocess done techniqu resiz mask gaussian smoothen ii imag egment implement use meanshift model gradient vector flow gvf model iii featur extract can achiev gradient invers coeffici variat circular measur iv classif use bayesian classifi experiment result show perfect detect caviti accur low fals posit rate fpr

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