Abstract #1381

Grey-Level Co-Occurrence Matrix Texture Analysis of T2, Adiabatic T1ρ, Adiabatic T2ρ and Dual-Echo Steady-State Magnetic Resonance Imaging Contrasts in Osteoarthritic Knee Articular Cartilage

Ines Barros^1,2, Arttu Peuna², Victor Casula^1,3, Marianne Haapea^1,2, Eveliina Lammentausta², and Miika T. Nieminen^1,2,3

¹Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland, ²Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland, ³Medical Research Center, University of Oulu and Oulu University Hospital, Oulu, Finland

Grey-level co-occurrence matrix (GLCM) based texture analysis is a sensitive image processing tool for the evaluation of cartilage in knee osteoarthritis (OA). Texture analysis of T₂, Adiabatic T_1ρ (AdT_1ρ), Adiabatic T_2ρ (AdT_2ρ) relaxation time maps as well as Dual-Echo Steady-State (DESS) images showed the ability to distinguish OA patients and asymptomatic volunteers. Moreover, texture analysis turned out to be more sensitive to cartilage degeneration than mean relaxation time values. Texture analysis can therefore supplement existing quantitative MRI techniques of articular cartilage.

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