<div dir="ltr"><div><div><div><div>Hello,<br><br></div>Thank you for the detailed explanation. I am having troubles to reconstruct an image for a cylindrical PET system simulated using Gate. I am generating .geom file and .cdh and .cdf files (attached in this email) for my .mac file and for the output root file. But the image generated has some problem (see the screen-shot below). Please guide me where I am going wrong. <br><br></div>Thank you very much for all your support.<br><br></div>Regards,<br></div>Kajal<br><div><div><div><div><br><br><img src="cid:ii_15da232b2e138706" alt="Inline image 1" width="560" height="190"><br><br><br><img src="cid:ii_15da23359ca9ee7c" alt="Inline image 2" width="560" height="179"> <br></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 1, 2017 at 9:00 PM, tmerlin <span dir="ltr"><<a href="mailto:Thibaut.Merlin@univ-brest.fr" target="_blank">Thibaut.Merlin@univ-brest.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<p>Hello Kajal,</p>
<p>F.O.V variables are arbitrary computed as <i>scanner_radius(mm)</i><i>/4</i>
for the transaxial component, and the axial dimension (mm) of the
rsector/block for the axial component. The transaxial/axial number
of voxels are calculated from these values in order to get (large)
isotropic 4mm voxels.<br>
</p>
<p>The sole purpose of these variables is to be used as default for
reconstruction dimensions/voxel sizes when using this scanner, in
the case no dimensions have been initialized in command-line
options. In practice, they are overwritten by the parameters
entered in command line options (<i>-dim</i> for number of voxels,
<i>-fov /-vox</i> for field of view and voxel dimensions
initializations ).</p>
<p>Best regards,</p>
<p>Thibaut<br>
</p><div><div class="h5">
<br>
<div class="m_3382528311770357868moz-cite-prefix">On 01/08/2017 16:54, Kajal Aggarwal
wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="h5">
<div dir="ltr">
<div>Hello everyone,<br>
<br>
</div>
I am trying to create .geom file from a .mac file for PET
scanner system. In the .geom file created, I would like to know
how the voxels number transaxial, voxels number axial, field of
view transaxial, field of view axial are being calculated.<br>
<br>
<br>
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<div>
<div><br>
-- <br>
<div class="m_3382528311770357868gmail_signature">
<div dir="ltr">
<div>Thanking you.</div>
<div> </div>
<div>Yours sincerely,</div>
<div>Kajal Aggarwal</div>
</div>
</div>
</div>
</div>
</div>
<br>
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<pre class="m_3382528311770357868moz-signature" cols="72">--
Thibaut MERLIN -- PhD
Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Bâtiment 1
CHRU Morvan - 2, Av. Foch
29609 Brest CEDEX - FRANCE
Tel: 06.75.12.24.90</pre>
</font></span></div>
</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Thanking you.</div><div> </div><div>Yours sincerely,</div><div>Kajal Aggarwal</div></div></div>
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