Abstract
We investigated the feasibility of quantifying osteoarthritis (OA) by analysis of the trabecular bone
structure in low-¿eld knee MRI. Generic texture features were extracted from the images and
subsequently selected by sequential ¿oating forward selection (SFFS), following a fully automatic,
uncommitted machine-learning based framework. Six different classi¿ers were evaluated in crossvalidation schemes and the results showed that the presence of OA can be quanti¿ed by a bone
structure marker. The performance of the developed marker reached a generalization area-under-theROC (AUC) of 0.82, which is higher than the established cartilage markers known to relate to the OA diagnosis.
structure in low-¿eld knee MRI. Generic texture features were extracted from the images and
subsequently selected by sequential ¿oating forward selection (SFFS), following a fully automatic,
uncommitted machine-learning based framework. Six different classi¿ers were evaluated in crossvalidation schemes and the results showed that the presence of OA can be quanti¿ed by a bone
structure marker. The performance of the developed marker reached a generalization area-under-theROC (AUC) of 0.82, which is higher than the established cartilage markers known to relate to the OA diagnosis.
Originalsprog | Engelsk |
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Tidsskrift | Computers in Biology and Medicine |
Vol/bind | 42 |
Udgave nummer | 7 |
Sider (fra-til) | 735-742 |
Antal sider | 8 |
ISSN | 0010-4825 |
DOI | |
Status | Udgivet - jul. 2012 |