Module 01. Physics of Cardiovascular PET-Physics of Cardiovascular PET (Slides)

Physics of Cardiovascular PET (Slides)

Pdf Summary

This document is an educational module on the basics of Cardiovascular PET (Positron Emission Tomography). The module is divided into five parts: <br /><br />1. Physics of Cardiovascular PET: This section provides an overview of the physics involved in PET image formation, including the origin and nature of positrons, positron annihilation, and factors affecting PET image quality. It also discusses the different types of particles and radiation emitted by nuclear decay.<br /><br />2. PET Imaging Systems: This part explains the different configurations of PET detectors and how they surround the patient to capture the paired annihilation gamma rays. It also compares PET systems to SPECT (Single Photon Emission Computed Tomography) systems and highlights the advantages of PET in terms of spatial resolution and counts.<br /><br />3. Photon Events in PET: This section covers the different types of photon events recorded in PET, including true events (paired annihilation gamma rays), scattered events, and random events. It also explains the concept of Noise Equivalent Counts (NEC) and the optimal range of tracer activity for PET scans.<br /><br />4. Attenuation Artifacts: This part discusses the attenuation of gamma rays by the patient's body and how it affects PET image quality. It compares the attenuation artifacts in SPECT and PET scans and highlights the importance of CT attenuation correction in PET imaging.<br /><br />5. PET Reconstruction Corrections: The final section highlights the various corrections made during the PET image reconstruction process, including scatter and random event corrections, attenuation correction, and position corrections. It also explains the iterative reconstruction algorithms used in PET imaging.<br /><br />Overall, this module provides a comprehensive introduction to the physics and techniques involved in Cardiovascular PET imaging. It is aimed at educating healthcare professionals and students about the basic principles of PET and its advantages over other imaging modalities.

Keywords

Cardiovascular PET

Positron Emission Tomography

Physics of PET

PET image formation

PET detectors

Photon events in PET

Attenuation artifacts

CT attenuation correction

PET reconstruction corrections

Imaging modalities