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Advances in positron tomography for oncology
T F Budinger1, K M Brennan, W W Moses
1Center for Functional Imaging, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Nuclear Medicine and Biology
|August 1, 1996
Summary
Positron emission tomography (PET) instrumentation has advanced significantly over 42 years, improving spatial resolution and detector capabilities. Future PET systems promise even higher resolution for general and specialized medical imaging applications.
Area of Science:
- Medical Imaging
- Nuclear Medicine
- Instrumentation Science
Background:
- Positron Emission Tomography (PET) instrumentation has evolved over 42 years.
- Early systems used simple dual-detector coincidence scanners.
- Current advancements focus on increasing detector numbers and coverage.
Purpose of the Study:
- To review the key advancements in PET instrumentation.
- To highlight the factors driving improvements in PET technology.
- To discuss the future trajectory of PET system development.
Main Methods:
- Review of historical development of PET scanners.
- Analysis of technological determinants influencing PET instrumentation.
- Projection of future PET system capabilities.
Main Results:
- PET instrumentation has progressed from dual-detector scanners to systems with 60,000 detectors.
- Key advancements include improved spatial resolution (better than 4 mm, aiming for 2 mm).
- Specialized PET devices for breast and brain tumor studies offer resolutions of 1.7-5 mm.
Conclusions:
- PET instrumentation continues to advance rapidly, driven by factors like detector technology and data processing.
- Future general-purpose PET systems are expected to achieve 2-mm resolution.
- Specialized PET devices will enhance diagnostic capabilities for specific oncological applications.