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Scatter fraction: measurement and correction.

A M Paans¹, G Rosenqvist, S Holte

¹Department of Nuclear Medicine, University Hospital, Oostersingel, Groningen, The Netherlands.

European Journal of Nuclear Medicine

|January 1, 1989

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This review covers scatter in Positron Emission Tomography (PET), explaining its origins and impact on imaging data. It also explores various methods for scatter measurement and correction in PET scans.

Area of Science:

Medical Imaging
Nuclear Medicine
Physics

Background:

Scatter is a significant artifact in Positron Emission Tomography (PET) imaging.
Understanding scatter origin is crucial for accurate quantitative analysis in PET.

Purpose of the Study:

To provide a comprehensive review of scatter in PET.
To discuss the origins and data influence of scatter.
To explore methods for scatter measurement and correction.

Main Methods:

Literature review of scatter phenomena in PET.
Analysis of scatter's impact on image quality and quantitative accuracy.
Discussion of existing and emerging scatter correction techniques.

Main Results:

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Scatter originates from Compton scattering and pair production within the patient and scanner components.
Scatter degrades image resolution and introduces quantitative errors.
Various methods exist for scatter estimation and correction, each with advantages and limitations.

Conclusions:

Effective scatter correction is essential for high-quality PET imaging.
Ongoing research aims to improve the accuracy and efficiency of scatter correction methods.
This review serves as a resource for understanding and mitigating scatter in PET.