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Spatio-energetic cross-talk in photon counting detectors: numerical detector model (PcTK) and workflow for CT image quality assessment
Author(s): Katsuyuki Taguchi; Karl Stierstorfer; Christoph Polster; Okkyun Lee; Steffen Kappler
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Paper Abstract

We developed and reported an analytical model (version 2.1) of inter-pixel cross-talk of energy-sensitive photon counting detectors (PCDs) in 2016 [1]. Since the time, we have identified four problems that are inherent to the design of the model version 2.1. In this study, we have developed a new model (version 3.2; “PcTK” for Photon Counting Toolkit) based on a totally different design concept. The comparison with the previous model version 2.1 and a Monte Carlo (MC) simulation has shown that the new model version 3.2 addressed the four problems successfully. The workflow script for computed tomography (CT) image quality assessment has demonstrated the utility of the model and potential values to CT community. The software packages including the workflow script, built using Matlab 2016a, has been made available to academic researchers free of charge (PcTK; https://pctk.jhu.edu).

Paper Details

Date Published: 9 March 2018
PDF: 8 pages
Proc. SPIE 10573, Medical Imaging 2018: Physics of Medical Imaging, 1057310 (9 March 2018); doi: 10.1117/12.2293881
Show Author Affiliations
Katsuyuki Taguchi, Johns Hopkins Univ. School of Medicine (United States)
Karl Stierstorfer, Siemens Healthineers (Germany)
Christoph Polster, Siemens Healthineers (Germany)
Ludwig-Maximilians-Univ. Hospital (Germany)
Okkyun Lee, Johns Hopkins Univ. School of Medicine (United States)
Steffen Kappler, Siemens Healthineers (Germany)


Published in SPIE Proceedings Vol. 10573:
Medical Imaging 2018: Physics of Medical Imaging
Joseph Y. Lo; Taly Gilat Schmidt; Guang-Hong Chen, Editor(s)

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