ArticleIEEE transactions on radiation and plasma medical sciences2021
Performance Characteristics of Long Axial Field-of-View PET Scanners with Axial Gaps.
Article in IEEE transactions on radiation and plasma medical sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Realization of long axial field-of-view PET technology in the clinic and research environment.The British journal of radiology · 2026Review
- Filling of incomplete sinograms from sparse PET detector configurations using a residual U-Net.Medical physics · 2026Article
- Instrumentation Digital Twins in PET and SPECT Imaging: Current Status, Challenges, and Future Directions.Computational and structural biotechnology journal · 2026Review
- Impact of the maximum ring difference on image quality and noise characteristics of a total-body PET/CT scanner.Zeitschrift fur medizinische Physik · 2025Article
- Performance evaluation of a medium axial field-of-view sparse PET system based on flat panels of monolithic LYSO detectors: a simulation study.EJNMMI physics · 2025Article
- Realistic total-body J-PET geometry optimization: Monte Carlo study.Medical physics · 2025Article
- Total-Body PET System Designs with Axial and Transverse Gaps: A Study of Lesion Quantification and Detectability.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2025Article
- Total Body PET/CT: Future Aspects.Seminars in nuclear medicine · 2025Review
- Performance and application of the total-body PET/CT scanner: a literature review.EJNMMI research · 2024Review
- Walk-through flat panel total-body PET: a patient-centered design for high throughput imaging at lower cost using DOI-capable high-resolution monolithic detectors.European journal of nuclear medicine and molecular imaging · 2023Article
- Evaluation of cost-effective system designs for long axial field-of-view PET scanners.Physics in medicine and biology · 2023Article
- Performance evaluation of the PennPET explorer with expanded axial coverage.Physics in medicine and biology · 2023Article
- Technical opportunities and challenges in developing total-body PET scanners for mice and rats.EJNMMI physics · 2023Review
- Total-body PET: a new paradigm for molecular imaging.The British journal of radiology · 2022Review
- Total-Body PET: Will It Change Science and Practice?Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2022Article
- Time of Flight in Perspective: Instrumental and Computational Aspects of Time Resolution in Positron Emission Tomography.IEEE transactions on radiation and plasma medical sciences · 2021Article
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Authors and funding
4 authors.
Funding
Abstract
The introduction of long (>60 cm) axial field-of-view (LAFOV) PET systems has shown their potential for clinical and research applications. LAFOV scanners are expensive, so there is interest in designing systems with longer axial coverage while mitigating cost by introducing detector gaps. We used measurements on the PennPET Explorer (64-cm AFOV prototype) and simulations of scanners up to 143-cm long to assess scanner performance with axial gaps introduced by varying the number of detector rows in each ring. Removing detectors reduces the total sensitivity and results in a non-uniform axial noise profile. Axial resolution shows small (<0.5 mm) loss from the edge of the AFOV to the center, even for a 143-cm AFOV scanner with an unrestricted acceptance angle. The presence of large axial gaps increases the variability in axial resolution and contrast recovery across the AFOV compared to a system without gaps. More modest axial gaps show less variable behavior. The results suggest that designs where the gap is no larger than one-half of the width of a detector ring may be preferred, although the optimal choice of scanner design with the trade-offs of performance and AFOV will depend on its intended usage.
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