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listmode farmat and crystal map #1062
Description
Hi,
Thanks for sharing your working!
Here, I am confused to reconstruction images from my listmode data by STIR.
1. listmode data in events should be .safir farmat. I check examples/SAFIR_genericScanner/coinciencesLM.clm.safir by python numpy, I thought it is binary file(uint8). Should I put two crystal IDs per LOR? Or anything else?
2. it is easy to understand ring/detector/layer in crystal map, but which space coordinates should I choose to compute? Where should I be the origin of the coordinates?
I cannot find the answers in web, maybe it look like stupid, but as a beginner, it is hard for me :(
Thanks again! : )
Hannah
Activity
danieldeidda commentedon Jul 28, 2022
Hi Hannah,
list-mode reconstruction is scanner dependent, so according to the scanner you are using to acquire your data STIR may not have a model for it. The Safir format only works for that particular scanner. Currently, as far as I know, STIR has formats implemented for PET rootfiles, Safir, Siemens mMR, and GE signa. If you are using a different scanner a model for this needs to be implemented, and would require the vendor to give access to the list-mode format.