Abstract #0538

Texture analysis of T2 relaxation time maps reveals degenerative changes in articular cartilage: Oulu Knee Osteoarthritis study

Arttu Peuna^1,2,3, Joonas Hekkala^1,3, Marianne Haapea^1,2, Jana Podlipska^1,3, Ali Guermazi⁴, Miika T Nieminen^1,2,3, Simo Saarakkala^1,2,3, and Eveliina Lammentausta^1,2

¹Medical Research Center, University of Oulu and Oulu University Hospital, Oulu, Finland, ²Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland, ³Research group of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland, ⁴Department of Radiology, Boston University School of Medicine, Boston, MA, United States

Gray level co-occurrence matrix based texture analysis is a sensitive image processing method that probes the spatial information from knee MR T2 maps and of the changes caused by osteoarthritis (OA). Texture analysis can distinguish symptomatic patients from healthy control subjects more sensitively than regional mean T2 analysis, and provides additional information also when compared to clinical evaluations such as MOAKS. Advanced learning algorithms can be further utilized to classify asymptomatic and OA subjects.

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