Module 03b. PET Quality Control, Corrections and Processing-PET Quality Control, Corrections and Processing (Slides)

PET Quality Control, Corrections and Processing (Slides)

Pdf Summary

Module 3b of the Instrumentation series focuses on PET (positron emission tomography) quality control, corrections, and processing. The module begins by discussing the different types of PET acquisitions and the importance of proper reconstruction and processing techniques. It also covers the physical differences between SPECT (single photon emission computed tomography) and PET imaging.<br /><br />The module then delves into the fundamentals of PET, including higher system sensitivity and higher resolution compared to SPECT. It explains the four types of PET photon events: singles, scatter, randoms, and trues. The basics of cardiac PET acquisition are also discussed, including static, gated, and dynamic acquisitions, as well as transmission imaging for attenuation correction.<br /><br />The different types of PET reconstruction algorithms are explained, with a focus on iterative algorithms such as maximum likelihood and ordered subset-expectation maximization. The importance of post-reconstruction filtering to reduce noise is also emphasized.<br /><br />The module covers advanced reconstruction techniques, such as 3D acquisition and time of flight reconstruction, which can improve system sensitivity and image quality. Prompt gamma ray correction is discussed, as well as the impact of misregistration and motion on PET studies.<br /><br />The module concludes with an overview of flow measurements in PET and the different flow models used in analysis. It emphasizes the importance of quality control in flow measurements and the use of techniques such as rate pressure product as a quality control tool. The module also provides references for further reading on the topic.<br /><br />Overall, this module provides a comprehensive overview of PET quality control, corrections, and processing techniques, essential for the accurate interpretation and analysis of PET images.

Keywords

PET quality control

PET corrections

PET processing

PET acquisitions

reconstruction techniques

SPECT and PET imaging

cardiac PET acquisition

PET reconstruction algorithms

post-reconstruction filtering

advanced reconstruction techniques