[Castor-users] The recon results

[STUTE Simon]

Nothing really strange to me.

Seeing your image with the air phantom, I think that your reconstruction setup is fine.

So it looks like the effect of attenuation correction that is not applied during reconstruction.

Try to correct for it and see.

Simon

________________________________
De : ahwxz123 at mail.ustc.edu.cn [ahwxz123 at mail.ustc.edu.cn]
Envoyé : mardi 2 octobre 2018 11:04
À : STUTE Simon
Cc : castor-users at lists.castor-project.org
Objet : Re: RE:[Castor-users] The recon results


Hi,Simom

   I'm sorry about that. Here are some image pictures in attachments.

   At first, i thoutht that maybe scatter events were terrible, so i chose True evnets for GATE .root file, and with option "-isrc xxxx" in GATERootToCastor excutable to get the source image of simu, there was not so bad as recons.

   1.JPG : left ,Air phantom true events source image from GATE simulation;  right : the CASToR recon image of it ;

   2.JPG : left ,Water phantom true events source image from GATE simulation;  right : the CASToR recon image of it;

   3.JPG : left, Air phantom true events source image from GATE simulation​  ;  right: Water phantom true events source image from GATE simulation​

   4.JPG : left, Air phantom  Recon results,                        right: ​Water phantom  Recon results,​

regards,

​

-----原始邮件-----
发件人:"STUTE Simon" <simon.stute at cea.fr>
发送时间:2018-10-02 16:15:05 (星期二)
收件人: "ahwxz123 at mail.ustc.edu.cn" <ahwxz123 at mail.ustc.edu.cn>, "castor-users at lists.castor-project.org" <castor-users at lists.castor-project.org>
抄送:
主题: RE:[Castor-users] The recon results

Hi,

Would you have an image of what is right and what is strange, or a description ?
Otherwise, it will be difficult to find some clue.

Best
Simon

________________________________
De : Castor-users [castor-users-bounces at lists.castor-project.org<mailto:castor-users-bounces at lists.castor-project.org>] de la part de ahwxz123 at mail.ustc.edu.cn<mailto:ahwxz123 at mail.ustc.edu.cn> [ahwxz123 at mail.ustc.edu.cn<mailto:ahwxz123 at mail.ustc.edu.cn>]
Envoyé : mardi 2 octobre 2018 09:44
À : castor-users at lists.castor-project.org<mailto:castor-users at lists.castor-project.org>
Objet : [Castor-users] The recon results

Hi, Dear Castor users,
 i met a confusion about CASTOR results.
         i created two GATE simulations, with phantom and several different radioactive sources,  the difference is the material of phantom , one is air (little attenuation and scatter)  and the other one is water, (as described in attachment .mac files ). I chose TRUE  events both  from these two simulations separately, but what was surprised after CASToR recon was that,  only the air phantom recon image was right , and the water phantom's  was so strange. i checked the true events, and did not find anything weird, so i did not know the reason , is there something  wrong?
regards,

--
Xiaozhuang Wang  王小状
ahwxz123 at mail.ustc.edu.cn<mailto:ahwxz123 at mail.ustc.edu.cn>
Room410, The Department of Modern Physics, University of Science and Technology of China
No.96, JinZhai Road Baohe District,Hefei,Anhui, 230026,P.R.China.


--
Xiaozhuang Wang  王小状
ahwxz123 at mail.ustc.edu.cn<mailto:ahwxz123 at mail.ustc.edu.cn>
Room410, The Department of Modern Physics, University of Science and Technology of China
No.96, JinZhai Road Baohe District,Hefei,Anhui, 230026,P.R.China.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.castor-project.org/pipermail/castor-users/attachments/20181002/2f565ac8/attachment.html>