Dear list,<br />
<br />
I am performing single-voxel and multivoxel spectroscopy analysis and I need to do partial volume correction. I found a thread on the list of someone asking if it possible to achieve this using Freesurfer (see below), but there is no answer saying how it is done. My question is how can I define the voxel (for single-voxel) and the chosen voxels (for multivoxel) in the anatomical data set to use the segmentation of only that defined voxel&#63; I'm using a Siemens TrioTim 3T. All acquisitions are in the same session. The anatomical dataset is an average of 2 MPRAGEs which I've already processed using FS, and the spectra files are .rda. The header of the MRS data has info on vectors, but I don't know how to use them.<br />
<br />
<br />
<br />
&quot;Re: [Freesurfer] need info for beginner<br />
<br />
Bruce Fischl<br />
Thu, 26 Apr 2007 11:17:01 -0700<br />
<br />
Hi Pom,<br />
<br />
yes, people here are using it for spectroscopy and for partial volume correction (also for voxel placement).<br />
<br />
cheers,<br />
Bruce<br />
<br />
On Thu, 26 Apr 2007 [EMAIL PROTECTED] wrote:<br />
<br />
Hi,<br />
<br />
I am about to install FREE SURFER for my Spectroscopy work.<br />
I want to use the software to perform GM/WM segmentation on my<br />
single voxel data sets.<br />
<br />
I am wondering if any one on this mailing list is currently<br />
doing this task. I would like to get comments.<br />
<br />
My study is on a GE 3T scanner.<br />
<br />
thank you,<br />
<br />
Pom&quot;<br />
<br />
<br />
<br />
Any advice, please&#63;<br />
<br />
Thank you!<br />
<br />
Andreia<br />
<br />
<br />
<p><!--begin_signature-->-- <br />
<br />
Andreia Pereira, MSc student<br />
Visual Neuroscience Laboratory<br />
IBILI-Faculdade de Medicina<br />
Azinhaga de Santa Comba<br />
3000-354 Coimbra Portugal<br />
Phone +(351) 239480220<br />
Fax  +(351) 239480280<!--end_signature--></p>