Osteoarthritis and magnetic resonance imaging: potential and problems.

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Abstract
To date, MRI has primarily been used to study anatomical changes, and at a resolution that makes detailed analysis of focal change difficult. This is primarily because cost limits the development and use of tailor made research systems. The detailed analysis of soft tissue, cartilage, and bone marrow images should provide a fruitful non-invasive method to study OA. However, the development of MRI methods to study movement, diffusion and perfusion, and the spatial localisation of spectroscopic information, promises a revolution in the study of the living joint in man.