[Mristudio-users] Spherical index

[Rajagopalan, Venkateswaran]

Hi All,
 
I would like to study spherical index CS changes between my control and patients. Unfortunately I forgot to save the CS.dat file when I initially ran (tensor fit and other DTI processing steps). I wondering without going through all the steps of feeding my grad table and running all the tensor calculations I am wondering is it possible to calculate CS measure using Eigen values (since these files are automatically saved ). Or if you can tell the the formula to calculate CS measure which is used in DTI studio (I understand from Westin's paper he showed one can used 3 different normalizationprocedures one is to use, maximum diffusivity eigen value 1,  trace, or norm of the tensor so which one did DTI studio used).
 
Thanks
Venkat

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