[Gate-users] SPECT sinogram

[Uwe Pietrzyk]

Hi Anne,

assuming you are using GATE version 6, you can find in die WIKI
documentation, that SINOGRAM output is only selectable in the case you
are using a PET system like ECAT.

In the case of a SPECT system, you can use the option: "Projection"
as explained in the manual.

This is what I use to demonstrate the use of projections in conjunction
with a simulated SPECT acquisition.

/gate/output/projection/enable
/gate/output/projection/setFileName SPECT_Camera
/gate/output/projection/pixelSizeX 1.0 mm
/gate/output/projection/pixelSizeY 1.0 mm
/gate/output/projection/pixelNumberX 128
/gate/output/projection/pixelNumberY 128

By specifying a rotation of your SPECT camera, like 1 degree per second
and simulating a data acquisition of 180 sec, you obtain 180 projections / views,
which, properly ordered, allow a reconstruction into a number of slices
usually taken according to the size of the projections.

I hope this is helpful for the first steps!

Kind regards,

Uwe Pietrzyk
--
On 13.07.2010, at 00:55, Anne Sauve wrote:

Hello the collaboration,

I am new to Gate and trying to get my first SPECT sinogram.
The example I found in vgate (see attachment) does not run.
It is aborted and the sinogram I get is 0 byte.

I think I have the geometry of my scanner right now but I still don't know how to output a sinogram.
Could someone send me a simple SPECT program that outputs a sinogram that works.

Thank you very much,

Anne
<mainMacro.mac><secondPart.mac><Verbose.mac><MoveVisu.mac>

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Prof. Dr. Uwe Pietrzyk
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