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<div>Hi Andrea,</div>
<div><br>
</div>
<div>for reasonable reconstruction you need much more data, i.e. many more</div>
<div>coincidences. The root-files may become quite large and need space.</div>
<div><br>
</div>
<div>Kind regards,</div>
<div><br>
</div>
<div>Uwe Pietrzyk</div>
<br>
<div>
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<div><span style="orphans: 2; widows: 2;">/----------------------------------------------------------------------</span></div>
<div style="orphans: 2; widows: 2;">Prof. Dr. Uwe Pietrzyk<br>
Diplom-Physiker<br>
Institut für Neurowissenschaften und Medizin / INM-4<br>
Forschungszentrum Jülich GmbH<br>
52425 Jülich<br>
Tel: +49-2461-61 4763<br>
Fax: +49-2461-61 2820<br>
Mobil: +49-162-103-4871<br>
eMail: <a href="mailto:U.Pietrzyk@fz-juelich.de">U.Pietrzyk@fz-juelich.de</a><br>
<a href="http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html">http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html</a><br>
&<br>
Bergische Universität Wuppertal<br>
Fakultät für Mathematik und Naturwissenschaften</div>
<div style="orphans: 2; widows: 2;">Büro: D.08.01<br>
Gaußstr. 20<br>
42097 Wuppertal<br>
Tel: +49-(0)202-439-3523<br>
Fax: +49-(0)202-439-2811<br>
eMail: <a href="mailto:Uwe.Pietrzyk@physik.uni-wuppertal.de">Uwe.Pietrzyk@uni-wuppertal.de</a><br>
<a href="http://www.medizinphysik.uni-wuppertal.de/">http://www.medizinphysik.uni-wuppertal.de</a><br>
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<br>
<div>
<div>On 16 Jun 2016, at 14:51, Andrea Colantuono S221003 <<a href="mailto:andrea.colantuono@studenti.polito.it">andrea.colantuono@studenti.polito.it</a>> wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">okey, I will try this AMIDE tool. Now I used the line list_image_info for retrieving information about my image, but, as I supposed, image min, image max and image sum are zero. Now I have to understand if the problem is in GATE or in
STIR. Can you check if my steps in STIR are all right? So, after I had the root file from GATE, I used the code Bill_Gate_v1.0.C to take the sinogram. Then, I reconstructed the image in format .v with FBP2D, using the line ">FBP2D FBP2D.par" changing the file
name inside the .par file. Maybe are the coincidences too few? they are 1447.<br>
<br>
Il 2016-06-15 17:43 Pietrzyk, Uwe ha scritto:<br>
<blockquote type="cite">Hi Andrea,<br>
as long as you keep the structure of your system the same<br>
and have introduced the appropriate parameters into the<br>
conversion / sorting tool, the structure of the file remains the<br>
same as does the file size.<br>
I am not sure, but I remember that you should be able to<br>
visualise the "sinograms” with a tool like “amide”. Since the<br>
concersion is for producing input to STIR you may check<br>
the respective users guide.<br>
Maybe this is helpful for you.<br>
Kind regards,<br>
U. Pietrzyk<br>
/----------------------------------------------------------------------<br>
Prof. Dr. Uwe Pietrzyk<br>
Diplom-Physiker<br>
Institut für Neurowissenschaften und Medizin / INM-4<br>
Forschungszentrum Jülich GmbH<br>
52425 Jülich<br>
Tel: +49-2461-61 4763<br>
Fax: +49-2461-61 2820<br>
Mobil: +49-162-103-4871<br>
eMail: <a href="mailto:U.Pietrzyk@fz-juelich.de">U.Pietrzyk@fz-juelich.de</a><br>
<a href="http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html">http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html</a><br>
&<br>
Bergische Universität Wuppertal<br>
Fakultät für Mathematik und Naturwissenschaften<br>
Büro: D.08.01<br>
Gaußstr. 20<br>
42097 Wuppertal<br>
Tel: +49-(0)202-439-3523<br>
Fax: +49-(0)202-439-2811<br>
eMail: Uwe.Pietrzyk@uni-wuppertal.de<br>
http://www.medizinphysik.uni-wuppertal.de [1]<br>
----------------------------------------------------------------------/<br>
On 15 Jun 2016, at 16:38, Andrea Colantuono S221003<br>
<andrea.colantuono@studenti.polito.it> wrote:<br>
<blockquote type="cite">thank you for the answer!<br>
I tried with that code but I don't understand if the output is<br>
right. Indeed, the dimension of the file in output (107.3 MB) is the<br>
same for evrey input. So, for me this is wierd and I am afraid the<br>
output is always empty. Moreover, threee warnings occur, but I don't<br>
know if this is for them.<br>
The warning are:<br>
"Input file name is outputDerenzo*.root<br>
Michelogram file name is = Mich_sinog.s<br>
Projection file name is = Proj_sinog.s<br>
Warning in <TClass::TClass>: no dictionary for class TH1 is<br>
available<br>
Warning in <TClass::TClass>: no dictionary for class TAxis is<br>
available<br>
Warning in <TClass::TClass>: no dictionary for class TH1D is<br>
available<br>
Total Number of Coincidence Events:= 1447 "<br>
regards,<br>
Andrea<br>
Il 2016-06-14 18:27 Pietrzyk, Uwe ha scritto:<br>
Hi Andrea,<br>
on the GATE-WebPage<br>
http://www.opengatecollaboration.org/STIR<br>
you can find a link to source code for reading<br>
ROOT file and convert it for STIR.<br>
Kind regards and best wishes,<br>
Uwe Pietrzyk<br>
</blockquote>
/----------------------------------------------------------------------<br>
<blockquote type="cite">Prof. Dr. Uwe Pietrzyk<br>
Diplom-Physiker<br>
Institut für Neurowissenschaften und Medizin / INM-4<br>
Forschungszentrum Jülich GmbH<br>
52425 Jülich<br>
Tel: +49-2461-61 4763<br>
Fax: +49-2461-61 2820<br>
Mobil: +49-162-103-4871<br>
eMail: U.Pietrzyk@fz-juelich.de<br>
http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html<br>
&<br>
Bergische Universität Wuppertal<br>
Fakultät für Mathematik und Naturwissenschaften<br>
Büro: D.08.01<br>
Gaußstr. 20<br>
42097 Wuppertal<br>
Tel: +49-(0)202-439-3523<br>
Fax: +49-(0)202-439-2811<br>
eMail: Uwe.Pietrzyk@uni-wuppertal.de<br>
http://www.medizinphysik.uni-wuppertal.de [1]<br>
</blockquote>
----------------------------------------------------------------------/<br>
<blockquote type="cite">On 13 Jun 2016, at 10:19, Andrea Colantuono S221003<br>
<andrea.colantuono@studenti.polito.it> wrote:<br>
Hi everybody!<br>
I am working on a cylindrical PET and I have to evaluate the impact<br>
of the positron range on the quality of the images. I have some<br>
issues about retrieve an image from the coincidences of my system. I<br>
installed STIR, because I know GATE can not make an image, but how<br>
can I use my root or ASCII coincidences file on STIR?<br>
I installed also the packege GATE_PET_2_STIR but the root file is<br>
not recognized. Do you have alternatives?<br>
thank you,<br>
regards,<br>
Andrea<br>
_______________________________________________<br>
Gate-users mailing list<br>
Gate-users@lists.opengatecollaboration.org<br>
http://lists.opengatecollaboration.org/mailman/listinfo/gate-users<br>
</blockquote>
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<blockquote type="cite">Forschungszentrum Juelich GmbH<br>
52425 Juelich<br>
Sitz der Gesellschaft: Juelich<br>
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498<br>
Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher<br>
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(Vorsitzender),<br>
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,<br>
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</blockquote>
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<blockquote type="cite">Links:<br>
------<br>
[1] http://www.medizinphysik.uni-wuppertal.de/<br>
</blockquote>
Links:<br>
------<br>
[1] http://www.medizinphysik.uni-wuppertal.de/<br>
</blockquote>
</blockquote>
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