What is it about?
Fractional anisotropy is a map of diffusion tensor which shows the tissues textures.Fractional anisotropy is defined as the ratio of the anisotropic component of the diffusion tensor to the whole diffusion tensor and serves as a rotationally invariant scalar that quantifies the shape of the diffusion tensor.
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Why is it important?
The addition of diffusion tensor imaging sequences and fractional anisotropy mapping to a conventional magnetic resonance imaging protocol could be useful in detecting annular fissures and lumbar disc herniation.
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This page is a summary of: Assessment of lumbar disc herniaton using fractional anisotropy in diffusion tensor imaging along with conventional T2-weighted imaging, The Neuroradiology Journal, November 2019, SAGE Publications, DOI: 10.1177/1971400919891288.
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