so I can simply label the whole surface, if I&#39;m confident? I don&#39;t know much about labels and how to make them (I use caret mainly, since I do monkey). I presume it&#39;s what one would imagine, and there&#39;s a way to figure it out.<br>
<br><div class="gmail_quote">On 20 July 2012 19:36, Bruce Fischl <span dir="ltr">&lt;<a href="mailto:fischl@nmr.mgh.harvard.edu" target="_blank">fischl@nmr.mgh.harvard.edu</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Colin<br>
<br>
the hires label is meant to be the portion of the surface that is far enough into the FOV/coil that you are confident of the data there.<br>
<br>
cheers<br>
Bruce<div><div class="h5"><br>
<br>
On Fri, 20 Jul 2012, Colin Reveley wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi - <br>
I&#39;m using freesurfer with an ex-vivo MTR of a monkey, at 0.25mm.<br>
unfortunately the data doesn&#39;t fit into 256^3, and anyway things are much<br>
faster, and decent results are to be had by downsampling to 0.5mm.<br>
<br>
I did notice this mris_refine_surfaces. That looked great. I can fit 0.32mm<br>
into 256^3, so I did that, and called it 0.64mm, and treated it the same way<br>
I treated the 0.5mm (nu_correct etc etc) to get my &quot;hires.mgz&quot; for<br>
mris_refine_surfaces<br>
<br>
then I noticed mris_refine_surfaces wants ?h_hires.label as well.<br>
<br>
a) how would I make ?h_hires.label <br>
b) does my hires.mgz even have to be 256^3? If not, I could use the actual<br>
250um data to refine the surface, and that would be nice.<br>
c) I don&#39;t suppose there would be any chance of not only using a hi res<br>
volume to refine the surfaces, but also upsampling the surfaces too? There<br>
is a reason I might want them upsampled. It would be nice for the ?h.white<br>
mesh to sort of approximately have a node for each voxel face. It&#39;s to do<br>
with more accurately mapping certain data in CARET later on.<br>
<br>
I&#39;d settle for just how to make ?h_hires.label and use mris_refine_surfaces<br>
though :) <br>
<br>
cheers,<br>
<br>
Colin<br>
<br>
<br>
</blockquote>
<br>
<br></div></div>
The information in this e-mail is intended only for the person to whom it is<br>
addressed. If you believe this e-mail was sent to you in error and the e-mail<br>
contains patient information, please contact the Partners Compliance HelpLine at<br>
<a href="http://www.partners.org/complianceline" target="_blank">http://www.partners.org/<u></u>complianceline</a> . If the e-mail was sent to you in error<br>
but does not contain patient information, please contact the sender and properly<br>
dispose of the e-mail.<br>
</blockquote></div><br>