ArticleEJNMMI physics2025
Quantitative capabilities of commercial CZT SPECT-CT cameras with
Article in EJNMMI physics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Optimisation of Q.Clear (BSREM) Reconstruction Parameters forBioengineering (Basel, Switzerland) · 2026Article
- Simultaneous perfusion and dopaminergic imaging using dual-isotope CZT SPECT/CT in dementia with Lewy bodies.EJNMMI research · 2026Article
- Instrumentation Digital Twins in PET and SPECT Imaging: Current Status, Challenges, and Future Directions.Computational and structural biotechnology journal · 2026Review
- A critical phantom study of the energy window used forEJNMMI physics · 2025Article
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2 authors.
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Abstract
backgroundThis study aimed to analyse the quantitative capabilities of cadmium-zinc-telluride (CZT)-based SPECT-CT cameras using
resultsUsing the NEMA NU-2 1994 dedicated phantom, attenuation and scatter corrections seemed to perform very well. Equally, the contrast recovery of cold rods seemed to be superior for the CZT systems. However, the contrast recovery for the hot rods was inferior to the NaI camera, whereas it was comparable without the scatter correction. Finally, a quantification error of less than 5% was shown to be reachable when using adequate user-determined conversion factors. For the NaI camera, all results were similar to those of the past study.
conclusionsWithout scatter correction, the CZT SPECT systems showed contrast performance similar to the NaI camera. With scatter correction, this held true for cold objects but the contrast of hot objects was not significantly improved or was degraded depending on the system considered and the object size. Quantification errors of less than 5% were achievable. It is hoped that on-going developments at both manufacturers will improve the scatter correction accuracy.
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