problem in PET/reconstruct_measured_data due to SIRF bug

SyneRBI / SIRF-Exercises

SIRF Training and demonstration material

http://www.ccpsynerbi.ac.uk

Apache License 2.0

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Closed KrisThielemans closed 2 years ago

KrisThielemans commented 3 years ago

Due to https://github.com/SyneRBI/SIRF/issues/983, randoms and scatter background terms are currently ignored in this notebook...

Current work-around is to replace

acq_model.set_background_term(randoms+scatter_estimate)

with

acq_model.set_additive_term(asm.invert(randoms+scatter_estimate))

Note: the "additive" term is precorrected for the acquisition sensitivity, while the "background" term is not. See help(AcquisitionModel)

KrisThielemans commented 2 years ago

@evgueni-ovtchinnikov can you please check this one? should be fixed now

evgueni-ovtchinnikov commented 2 years ago

seems to work fine