Looking at the scans (attached, 3T on the left and 1.5T on the right, yellow hippocampus), I think you&#39;ve made a good point.  More comments are much appreciated, thanks!<br><br>Jessica Liu<br><br><div class="gmail_quote">
2011/6/23 Pedro Paulo de Magalhães Oliveira Junior <span dir="ltr">&lt;<a href="mailto:ppj@netfilter.com.br" target="_blank">ppj@netfilter.com.br</a>&gt;</span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">

<div>This is not normal. Maybe you should check the aseg volume for improper segmentation.<br><br></div><br><div class="gmail_quote"><div><div></div><div>On Thu, Jun 23, 2011 at 19:27, Jessica Liu <span dir="ltr">&lt;<a href="mailto:jessicaliu92@gmail.com" target="_blank">jessicaliu92@gmail.com</a>&gt;</span> wrote:<br>



</div></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div></div><div>Hi everyone!<br><br>I&#39;m currently a summer student working at a lab 
which uses Freesurfer to measure hippocampal volumes.  I noticed that 
scanning the same patient first on a GE 3T (Multi-channel head coil) and
 then a GE 1.5T (single-channel head coil) 24 hours later resulted in a 
30% increase in the left hippocampus volume and a 18% increase for the 
right hippocampus based on the values in aseg.stats.  Can anyone please 
comment on this and explain the large discrepancies?  Thanks!<br><font color="#888888"><br>Jessica Liu<br>
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