[Gate-users] BAD Sinograms for PET using Bin_GATE.c

[Ville-Veikko Wettenhovi]

Hi,

I can't comment on Bin_GATE.c, but as an alternative you can try to use OMEGA software instead as it has built-in support for mCT and GATE: https://github.com/villekf/OMEGA. Though be sure to download the source instead of the current release as I haven't yet made a new official release.

Regards,
Ville-Veikko Wettenhovi
________________________________
From: Gate-users <gate-users-bounces at lists.opengatecollaboration.org> on behalf of Mohamed Mohamed <melkatib1 at gmail.com>
Sent: Monday, June 8, 2020 14:12
To: gate-users at lists.opengatecollaboration.org <gate-users at lists.opengatecollaboration.org>
Subject: [Gate-users] BAD Sinograms for PET using Bin_GATE.c

Dear Gaters,

After simulating a point source acquisition with mCT model, I binned my sinograms from ROOT output using Bin_GATE.c from OpenGates' website, BUT when displaying them, while those corresponding to segments close to zero are fine, those corresponding to segments with large obliquity doesn't look good. I attached 4 pictures corresponding to segment-26 sinograms in 4 axial positions (4 oblique slices). One can clearly note that the sinogram in this segment is spread over several axial positions (and each axial position contains counts in juste part of azimuthal angles 'phi' ), and the 4 axial positions are complementary. TAn image of the effect on the reconstructed image is also attached.

If anyone who was confronted with the same problem could kindly share his experience to solve this.

Thank you in advance for your consideration.

Mohamed
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