ArticleJournal of medical imaging (Bellingham, Wash.)2017
Estimation of signal and noise for a whole-body research photon-counting CT system.
Article in Journal of medical imaging (Bellingham, Wash.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- Dual-Contrast Biphasic Liver Imaging With Iodine and Gadolinium Using Photon-Counting Detector Computed Tomography: An Exploratory Animal Study.Investigative radiology · 2022Article
- Energy-integrating-detector multi-energy CT: Implementation and a phantom study.Medical physics · 2021Article
- Simultaneous Dual-Contrast Imaging of Small Bowel With Iodine and Bismuth Using Photon-Counting-Detector Computed Tomography: A Feasibility Animal Study.Investigative radiology · 2020Article
- Multi-energy CT imaging for large patients using dual-source photon-counting detector CT.Physics in medicine and biology · 2020Article
- Multi-energy computed tomography and material quantification: Current barriers and opportunities for advancement.Medical physics · 2020Review
- Detective quantum efficiency of photon-counting CdTe and Si detectors for computed tomography: a simulation study.Journal of medical imaging (Bellingham, Wash.) · 2020Article
- Radiation dose efficiency of multi-energy photon-counting-detector CT for dual-contrast imaging.Physics in medicine and biology · 2019Article
- Feasibility of multi-contrast imaging on dual-source photon counting detector (PCD) CT: An initial phantom study.Medical physics · 2019Article
- Photon-Counting Computed Tomography for Vascular Imaging of the Head and Neck: First In Vivo Human Results.Investigative radiology · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
Photon-counting detector CT has a large number of acquisition parameters that require optimization, particularly the energy threshold configurations. Fast and accurate estimation of both signal and noise in photon-counting CT (PCCT) images can facilitate such optimization. Using the detector response function of a research PCCT system, we derived mathematical models for both signal and noise estimation, taking into account beam spectrum and filtration, object attenuation, water beam hardening, detector response, radiation dose, energy thresholds, and the propagation of noise. To determine the absolute noise value, a noise lookup table (LUT) for all available energy thresholds was acquired using a number of calibration scans. The noise estimation algorithm then used the noise LUT to estimate noise for scans with a variety of combination of energy thresholds, dose levels, and object attenuations. Validation of the estimation algorithms was performed on a whole-body research PCCT system using semianthropomorphic water phantoms and solutions of calcium and iodine. Clinical feasibility of noise estimation was assessed with scans of a cadaver head and a living swine. The algorithms achieved accurate estimation of both signal and noise for a variety of scanning parameter combinations. Maximum discrepancies were below 15%, while most errors were below 5%.
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Registered trials
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.