Cardiac PET Intensive Virtual Workshop (January 11-12, 2025)-PET Physics 101

Video Transcription

Video Summary

The video is a presentation by James Case on the physics of PET (positron emission tomography). He begins by disclosing his affiliations and grant support. PET is a nuclear imaging technique that uses positron-emitting radiotracers. The main difference between PET and SPECT (single photon emission computed tomography) is that PET uses simultaneous detection of two 511 keV photons to create an image, while SPECT uses a single photon process. PET also allows for attenuation correction and creates high-quality images. The presentation covers the physics behind PET images and discusses the concept of annihilation, the materials used in PET detectors, and the different strategies for attenuation correction. Case also explains the use of different tracers in cardiac PET, radiation dosages, and artifacts that can occur during PET imaging. He concludes with recommendations for acquisition protocols and interpretation.

Keywords

PET

positron emission tomography

nuclear imaging

attenuation correction

radiotracers

annihilation