ArticleEJNMMI physics2024
Performance evaluation of the 3D-ring cadmium-zinc-telluride (CZT) StarGuide system according to the NEMA NU 1-2018 standard.
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15 citing papers in PubMed.
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- Quantitative SPECT/CT: Technique and Clinical Applications.Recent results in cancer research. Fortschritte der Krebsforschung. Progres dans les recherches sur le cancer · 2026Review
- An European consensus on [EJNMMI physics · 2025Article
- Renal dynamic scintigraphy using 3D-ring CZT cameras: comparison with NaI(Tl).EJNMMI research · 2025Article
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- Analytical methods for system matrix calculation and spatial resolution evaluation of DC-SPECT system.Physics in medicine and biology · 2025Article
- Design optimization and simulated performance evaluation of a self-collimated cardiac SPECT with simultaneous high sensitivity and resolution.Medical physics · 2025Article
- Quantitative capabilities of commercial CZT SPECT-CT cameras withEJNMMI physics · 2025Article
- New Generation SPECT Cameras Based on Cadmium-Zinc Telluriide Technology.Annals of nuclear cardiology · 2024Review
- Impact of Collimator Material on Spatial Resolution and Sensitivity in Semiconductor-Based Imaging Systems: A Monte Carlo Evaluation.Indian journal of nuclear medicine : IJNM : the official journal of the Society of Nuclear Medicine, IndiaArticle
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Abstract
backgroundThe application of semi-conductor detectors such as cadmium-zinc-telluride (CZT) in nuclear medicine improves extrinsic energy resolution and count sensitivity due to the direct conversion of gamma photons into electric signals. A 3D-ring pixelated CZT system named StarGuide was recently developed and implemented by GE HealthCare for SPECT acquisition. The system consists of 12 detector columns with seven modules of 16 × 16 CZT pixelated crystals, each with an integrated parallel-hole tungsten collimator. The axial coverage is 27.5 cm. The detector thickness is 7.25 mm, which allows acquisitions in the energy range [40-279] keV. Since there is currently no performance characterization specific to 3D-ring CZT SPECT systems, the National Electrical Manufacturers Association (NEMA) NU 1-2018 clinical standard can be tailored to these cameras. The aim of this study was to evaluate the performance of the SPECT/CT StarGuide system according to the NEMA NU 1-2018 clinical standard specifically adapted to characterize the new 3D-ring CZT.
resultsDue to the integrated collimator, the system geometry and the pixelated nature of the detector, some NEMA tests have been adapted to the features of the system. The extrinsic measured energy resolution was about 5-6% for the tested isotopes (
conclusionsThe performance tests of the StarGuide can be performed according to the NEMA NU 1-2018 standard with some adaptations. The system has shown promising results, particularly in terms of energy resolution, spatial resolution and volumetric sensitivity, potentially leading to higher quality clinical images.
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