Thanks, Pedro. The code is one of the examples that comes with Geant4 examples/extended/medical/DICOM
I only changed the three input files 1.g4dcm, 2.g4dcm, and 3.g4dcm, by changing the -196 and 196 on lines 13 and 14 to -64 and 64, respectively. Please let me know if you’d still like me to send the code.