Hybrid Imaging Virtual Workshop (02 25)-Pitfalls and Artifacts

Video Transcription

Video Summary

In this video, Dr. James Case discusses the pitfalls and artifacts of hybrid imaging. Hybrid imaging involves combining two different modalities (such as PET and CT) in a single imaging device. The advantages of hybrid imaging include fast diagnostic CT scanning times, high count studies for transmission attenuation correction, and the ability to assess calcium and perform other tests with CT. However, there are drawbacks to hybrid imaging, including higher radiation dose, more complex motion artifacts, and challenges in interpreting the CT data. Dr. Case provides examples of PET and PET-CT systems, as well as SPECT-CT systems, and discusses the different types of artifacts that can occur in these studies. He emphasizes the importance of quality control in hybrid imaging, including checking for misregistration between CT and emission data, identifying metal artifacts, and correcting for breathing artifacts. Dr. Case recommends using metal artifact correction on all cases and inspecting the CT data for secondary findings. Overall, understanding and addressing these pitfalls and artifacts is crucial for obtaining accurate and reliable results in hybrid imaging.

Keywords

hybrid imaging

artifacts

PET-CT

SPECT-CT

radiation dose

quality control

metal artifact correction