Blessy Mathew wrote:
>
> I just started to use @auto_tlrc to talaraich my data sets and
> have noticed the following:firstly, the vertical line though
> the posterior of the AC is off by 3mm from the center in the
> talaraiched output (when you manually talaraich the VCA ends up
> at 0,0,0).
That is possible, nothing in the automated approach attempts to make VCA at 0, 0, 0 and
Secondly, the angle of the CA-CP line is off i.e.
> it does not pass though the superior of the AC, and the
> inferior of the PC.
Same thing.
On looking at the base template (TT_N27)
> that I am using, these discrepancies are seen in the template
> too. Is there any other template that is available that has the
> above mentioned factors considered?
The automated approach does not treat the AC/PC , or VCA lines in any special manner. The alignment is based on minimizing the 'discrepancy' between one volume and the template over all voxels.
cheers,
ziad