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• W1973661026 abstract "Spectral Computed Tomography (SCT) systems equipped with photon counting detectors (PCD) are clinically desired, since such systems provide not only additional diagnostic information but also radiation dose reductions by a factor of two or more. The current unavailability of clinical PCDs makes a simulation of such systems necessary.In this paper, we present a Monte Carlo-based simulation of a SCT equipped with a PCD. The aim of this development is to facilitate research on potential clinical applications. Our MC simulator takes into account scattering interactions within the scanned object and has the ability to simulate scans with and without scatter and a wide variety of imaging parameters. To demonstrate the usefulness of such a MC simulator for development of SCT applications, a phantom with contrast targets covering a wide range of clinically significant iodine concentrations is simulated. With those simulations the impact of scatter and exposure on image quality and material decomposition results is investigated.Our results illustrate that scatter radiation plays a significant role in visual as well as quantitative results. Scatter radiation can reduce the accuracy of contrast agent concentration by up to 15%.We present a reliable and robust software bench for simulation of SCTs equipped with PCDs." @default.
• W1973661026 created "2016-06-24" @default.
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• W1973661026 date "2015-06-01" @default.
• W1973661026 modified "2023-09-26" @default.
• W1973661026 title "A Monte Carlo software bench for simulation of spectral k-edge CT imaging: Initial results." @default.
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• W1973661026 doi "https://doi.org/10.1016/j.ejmp.2015.03.003" @default.
• W1973661026 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25840620" @default.
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