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Título del libro: Feature Ensemble For Quantitative Analysis Of Emphysema In Ct Imaging

Autores UNAM:
JIMENA OLVERES MONTIEL;
Autores externos:

Idioma:
Inglés
Año de publicación:
2016
Palabras clave:

Gabor filters; Pulmonary diseases; Difference techniques; emphysema; feature ensemble; Log-gabor filter; Quantitative CT; Computerized tomography


Resumen:

Chronic obstructive pulmonary disease is a non-reversible disorder characterized primarily by a dominant emphysema or bronchitis. Since early treatments can help to control the symptoms, the quantification of emphysema has become an important topic. Here, we introduce a novel procedure to quantify emphysematous lesions using an ensemble of features based on log-Gabor filters, mean difference technique, and intensity values. This set captures both spatial and frequency variations and provides a suitable description of lung tissue. Leave-patient-out cross-validation was employed on the computed tomography emphysema database to validate our proposal. The sensitivity and specificity achieved were 91.22% and 95.48%, respectively. Such results have demonstrated that the proposed methodology could assist in quantification of emphysema. © 2015 IEEE.


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