Back to basics illustration of the nuc cameras 📷
SPECT vs PET as Nuclear Medicine Imaging Mechanism In SPECT (Single Photon Emission Tomography), the emitted radiation already is a Gamma ray, which is then directly used to create the camera mages. SPECT cameras use collimators to help localizing with precision the direction of the incoming ray. In PET (Positron Emission Tomography), the emitted radiation is a positron which,when interacting with the tissues around the radiopharmaceutical, creates 2 rays, one opposite the other. The rays hit a camera and the two signals taken in coincidence allow aprecise localization of the emission point.