[Gate-users] Sinogram format data without DOI effect

Naser Darwish naser.darwish at gmail.com
Wed Jan 12 00:09:10 CET 2011

Dear gate-users,

This is just a clarification to DOI issue. I am not really sure how the
sinogram output is generated but I assume it is rebinned from a root ouput
file that takes the LOR that at a given depth in the crystal and assigns the
LOR to the surface to the crystal. The sinogram is then rebinned from the
information at the surface of the crystal and the DOI information is lost.
Is there a way to use the DOI in the crystal and rebin that LOR directly to
generate the sinogram output data?

Best regards,


On Tue, Jan 11, 2011 at 4:05 PM, Naser Darwish <naser.darwish at gmail.com>wrote:

> Dear gate-users,
> Is it possible to not include the effect of DOI blurring or parallax effect
> so that the sinogram data are free of this effect? Is there a way to know
> the depth interaction distance into the crystal or assign the LOR to the
> right detector if this depth is known? I am currently disabling root and
> .dat and only enabling sinogram output but I am reconstructing with maximum
> ring difference and trying to eliminate the DOI effect. Any help is greatly
> appreciated.
> Best regards,
> Naser

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