Dear Castor users,
I am trying to reproduce the image quality section of the nema nu 2-2012. In the case of the hot spheres i can reproduce the experimental results perfectly, however in the case of the lung and the cold spheres I obtain high discrepancies and I do not understand why my model or the reconstruction algorithm (OSEM in my case, and siddon as projector) reproduces this results so poorly. Please, someone has experienced with this and could help me?
p.s.: I have reproduced exactly all the parameters used in the experiment.
Cheers,
Miriam