Hi Bruce, thanks for the prompt response. I'm sorry, but I don't quite understand what you mean by "the determinant of the talairach xform is an excellent predictor of TIV"? Could you please elaborate on this? I'm trying to understand how the program calculates the volume of TIV. As my current understanding, the volume of TIV is determine by the probabilistic atlas during the subcortical segmentation? Cheers, HL

On 5/17/06 4:01 AM, "Bruce Fischl" fischl@nmr.mgh.harvard.edu wrote:

Hi HweeLing,

we use the algorithm proposed by Randy Buckner and Denise Head. They showed that the determinant of the talairach xform is an excellent predictor of TIV.

cheers, Bruce On Wed, 17 May 2006, Lee HL wrote:

...

Hi, Pardon my ignorance. How does the program determine the volume for TIV? Thanks! Kind regards, HweeLing

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HweeLing,

Here's a link to the eTIV wiki page, containing a link to the paper:

http://surfer.nmr.mgh.harvard.edu/fswiki/eTIV

On Tue, 2006-05-16 at 16:16 -0400, Bruce Fischl wrote:

Randy: can you point HweeLing at your and Denise's paper on eTIV?

thanks, Bruce

On Wed, 17 May 2006, Lee HL wrote:

...

Hi Bruce, thanks for the prompt response. I'm sorry, but I don't quite understand what you mean by "the determinant of the talairach xform is an excellent predictor of TIV"? Could you please elaborate on this? I'm trying to understand how the program calculates the volume of TIV. As my current understanding, the volume of TIV is determine by the probabilistic atlas during the subcortical segmentation? Cheers, HL

On 5/17/06 4:01 AM, "Bruce Fischl" fischl@nmr.mgh.harvard.edu wrote:

...

Hi HweeLing,

we use the algorithm proposed by Randy Buckner and Denise Head. They showed that the determinant of the talairach xform is an excellent predictor of TIV.

cheers, Bruce On Wed, 17 May 2006, Lee HL wrote:

...

Hi, Pardon my ignorance. How does the program determine the volume for TIV? Thanks! Kind regards, HweeLing

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