Module 04. Hybrid Imaging-Hybrid Imaging (Presentation)

Video Transcription

Video Summary

This video transcript is from a module of the Cardiac PET Curriculum titled "Instrumentation, Hybrid Imaging, PET CT". The presenter, James Case from CVIT in Kansas City, Missouri, provides an overview of hybrid imaging, specifically PET-CT. He discusses the benefits of hybrid imaging for cardiac PET assessment, including high-count transmission studies for attenuation correction, assessment of anatomical features, and equipment sharing between departments. Case explains the working principles of a CT scanner, including the use of an X-ray tube to emit X-rays and acquire a series of images around the patient. He also highlights the differences between single-detector and multi-detector CT scanners and discusses the advantages of multi-slice systems in terms of coverage and resolution. Case then explains the concept of attenuation correction in PET-CT and the translation process from CT images to attenuation maps. He discusses common CT artifacts, such as misregistration and breathing artifacts, and the use of metal artifact correction for patients with implanted metal devices. He also mentions the additional information that can be obtained from CT images, such as assessing coronary calcium. Case concludes by discussing CT quality control and the radiation dose considerations in CT scans. The module emphasizes the importance of correct attenuation correction for PET-CT image quality and the need for radiation protection strategies specific to hybrid imaging. No credits are mentioned for this video transcript.

Keywords

Hybrid Imaging

PET-CT

Attenuation Correction

CT Scanner

Multi-slice Systems

CT Artifacts

Metal Artifact Correction

Radiation Dose Considerations