The provided text offers a comprehensive overview of nuclear medicine imaging, distinguishing it from other modalities by its focus on physiological and molecular function rather than just anatomical structure. It details the fundamental physics of radionuclide decay that underpins techniques like SPECT and PET, explaining how radiopharmaceuticals are designed to target specific biological processes within the body. The text further describes the instrumentation of gamma cameras and scanners, the principles of image reconstruction, and the transformative impact of hybrid imaging systems like PET/CT. Finally, it surveys the diverse clinical applications of nuclear medicine in oncology, cardiology, and neurology, emphasizing patient safety and the exciting future of theranostics and artificial intelligence in the field.

Research done with the help of artificial intelligence, and presented by two AI-generated hosts.