ArticleMedical physics2024
A systematic task-based image quality assessment of photon-counting and energy integrating CT as a function of reconstruction kernel and phantom size.
Article in Medical physics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 17 citations in OpenAlex.
- Size-specific weighted detectability index for computed tomography image characterization.Medical physics · 2026Article
- Photon-counting detector of the ophthalmic artery: impact of virtual monoenergetic levels, reconstruction kernel, and quantum iterative reconstruction (QIR) on image quality.Quantitative imaging in medicine and surgery · 2026Article
- Optimizing energy settings in CdTe, CZT, and Si photon-counting CT for material separation and detection.Physics in medicine and biology · 2026Article
- Nonprewhitening model observers in the Fourier and spatial domain: a comparison of predictions for iterative and deep learning reconstruction in computed tomography.Radiation protection dosimetry · 2026Article
- Gaussian Function Model for Task-Specific Evaluation in Medical Imaging: A Theoretical Investigation.Journal of imaging informatics in medicine · 2026Article
- Resolution-noise characteristics of common FDK filter kernels: A practical reference for preclinical cone-beam micro-CT.PloS one · 2026Article
- Airway quantifications of bronchitis patients with photon-counting and energy-integrating computed tomography.Journal of medical imaging (Bellingham, Wash.) · 2026Article
- Development of a customizable model for spectral photon-counting detector CT.Medical physics · 2025Article
- Three-dimensional noise characteristics of clinical photon counting detector CT.Medical physics · 2025Article
- Potential of photon-counting detector CT technology for contrast medium reduction in portal venous phase thoracoabdominal CT.European radiology · 2025Article
- Quantitative Accuracy of CT Protocols for Cross-sectional and Longitudinal Assessment of COPD: A Virtual Imaging Study.Proceedings of SPIE--the International Society for Optical Engineering · 2025Article
- The potential of photon-counting CT for the improved precision of lung nodule radiomics.Physics in medicine and biology · 2025Article
- Voxelwise characterization of noise for a clinical photon-counting CT scanner with a model-based iterative reconstruction algorithm.European radiology experimental · 2025Article
- Photon-Counting CT Effects on Sensitivity for Liver Lesion Detection: A Reader Study Using Virtual Imaging.Radiology · 2025Article
- Photon-counting computed tomography versus energy-integrating computed tomography for detection of small liver lesions: comparison using a virtual framework imaging.Journal of medical imaging (Bellingham, Wash.) · 2024Article
- A systematic assessment and optimization of photon-counting CT for lung density quantifications.Medical physics · 2024Article
- Technology Characterization Through Diverse Evaluation Methodologies: Application to Thoracic Imaging in Photon-Counting Computed Tomography.Journal of computer assisted tomographyArticle
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4 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundImage quality of photon-counting and energy integrating CT scanners changes with object size, dose to the object, and kernel selection. PURPOSE: To comprehensively compare task-generic image quality of photon-counting CT (PCCT) and energy integrating CT (EICT) systems as a function of phantom size, dose, and reconstruction kernel.
methodsA size-variant phantom (Mercury Phantom 3.0) was used to characterize the image quality of PCCT and EICT systems as a function of object size. The phantom contained five cylinders attached by slanted tapered sections. Each cylinder contained two sections: one uniform for noise, and the other with inserts for spatial resolution and contrast measurements. The phantom was scanned on Siemens' SOMATOM Force and NAEOTOM Alpha at 1.18 and 7.51 mGy without tube current modulation. CTDI
resultsFrom Br40 (soft) to Br64 (sharp), f
conclusionsBoth PCCT image types, T3D and 70-keV-VMI exhibited similar or better noise, contrast, CNR than EICT when comparing kernels with similar names. For 512 × 512 matrix, PCCT's sharp kernels had lower resolution than EICT's sharp kernels. For all image quality metrics, except extreme low, every dose condition had a similar set of IQ-matching kernels. It suggests that considering patient size and dose level to determine IQ-matching kernel pairs across PCCT and EICT systems may not be imperative while translating protocols, except when the signal to the detector is extremely low.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.