Nsi ppt

Nsi ppt

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  1 Role of DiffusionTensor tractography in meningiomas and correlation between DTI imaging and intra operative findings with regard to dural attachment
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   Diffusion tensorimaging measurements rely on the fact that structural features of the brain limit diffusion in some directions so that diffusion is anisotropic.  Diffusion tensor imaging information can be expressed in several ways, including fractional anisotropy (FA), which is calculated from eigenvalues 2
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  Title 18/12/08 3
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   The abilityof the DTI to predict the exact site of dural attachment of the meningiomas.  Plan approach depending on the probable attachment.  Predict probable histology  Trace surrounding nerves to plan surgery 4
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   Location N=11Correlation  Parasagittal 2 Correlated  Convexity 2 Correlated  Posterior petrous 2 Correlated  Clionoidal 3 Correlated  Tuberculum sella 1 Correlated  F. Magnum 1 correlated 6
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  8 Grade 1 petrousmeningioma
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  10 Helps in decidingapproach,and prognosticating visual recovery
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  16 Convexity meningioma
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