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Positron emission tomography to quantitate myocardial perfusion
G D Hutchins1, M Schwaiger, E Wolfe
1University of Michigan Medical Center, Ann Arbor.
American Journal of Cardiac Imaging
|December 1, 1993
Summary
Positron emission tomographic imaging advances allow quantitative, noninvasive measurement of myocardial perfusion. These methods assess coronary artery disease, aiding in evaluating treatment effectiveness.
Area of Science:
- Nuclear medicine
- Cardiovascular imaging
- Physiology
Background:
- Positron emission tomographic (PET) imaging advancements enable quantitative myocardial perfusion measurement.
- Development of positron-emitting radiotracers allows flexible labeling of compounds.
- Noninvasive assessment of myocardial blood flow (MBF) is crucial for cardiovascular disease evaluation.
Purpose of the Study:
- To describe state-of-the-art quantitative methods for noninvasive myocardial perfusion measurement using PET.
- To summarize initial experimental studies employing these MBF quantification techniques.
- To highlight the potential clinical applications of these PET-based MBF methods.
Main Methods:
- Methods are based on kinetic modeling of tracers behaving as inert, freely diffusible substances.
- Alternative methods utilize tracers mimicking radiolabeled microsphere behavior.
- Techniques are optimized to minimize resolution distortion effects in PET images.
Main Results:
- Summarizes initial experimental findings from studies using these quantitative MBF methods.
- Demonstrates the feasibility of accurate myocardial perfusion quantification.
- Highlights the minimization of image resolution artifacts in the applied methods.
Conclusions:
- Quantitative PET methods offer precise noninvasive measurement of myocardial perfusion.
- These techniques are expected to facilitate clinical evaluation of coronary reserve and collateral function.
- Potential for assessing treatment efficacy in coronary artery disease is anticipated.