what is the Winkler method to compute area? Anderson has a method to compute volume using an obliquely truncated pyramid

On 4/27/18 10:52 AM, Bruce Fischl wrote:

Hi Joost

I think you can do it with mris_make_surfaces by setting the number of iterations to 0 (-n 0) so it doesn't do any deformation, and starting with the surface you want to end with (e.g. -orig_white white)

cheers Bruce

On Fri, 27 Apr 2018, Joost Janssen wrote:

...

External Email - Use Caution

Hi,

Short: Is it possible to generate v6.-style ?h.area based on v5.1-recon output? If so, how?

Long: I have 5.1 processed data and would like to re-generate ?h.area v6-style (Winkler et al. 2018). I would like to avoid complete rerunning through v6.

Thanks, -joost

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Yes, Anderson's truncted pyramid is used to compute the ?h.volume files as well as the volume in the aparc stats files

On 4/27/18 11:25 AM, Joost Janssen wrote:

Hi,

what is the Winkler method to compute area? Anderson has a method
to compute volume using an obliquely truncated pyramid

Indeed. My bad. -joost

On 4/27/18 10:52 AM, Bruce Fischl wrote:

...

Hi Joost

I think you can do it with mris_make_surfaces by setting the
number of iterations to 0 (-n 0) so it doesn't do any
deformation, and starting with the surface you want to end with
(e.g. -orig_white white)

cheers
Bruce

On Fri, 27 Apr 2018, Joost Janssen wrote:

...

        External Email - Use Caution

Hi,

Short: Is it possible to generate v6.-style ?h.area based on
v5.1-recon output? If so, how?

Long: I have 5.1 processed data and would like to re-generate
?h.area v6-style (Winkler et al.
2018). I would like to avoid complete rerunning through v6.

Thanks,
-joost

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