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Proceedings Paper

High resolution laboratory grating-based x-ray phase-contrast CT
Author(s): Manuel P. Viermetz; Lorenz J. B. Birnbacher; Andreas Fehringer; Marian Willner; Peter B. Noel; Franz Pfeiffer; Julia Herzen
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Paper Abstract

Grating-based phase-contrast computed tomography (gbPC-CT) is a promising imaging method for imaging of soft tissue contrast without the need of any contrast agent. The focus of this study is the increase in spatial resolution without loss in sensitivity to allow visualization of pathologies comparable to the convincing results obtained at the synchrotron. To improve the effective pixel size a super-resolution reconstruction based on subpixel shifts involving a deconvolution of the image is applied on differential phase-contrast data. In our study we could achieve an effective pixel sizes of 28mm without any drawback in terms of sensitivity or the ability to measure quantitative data.

Paper Details

Date Published: 9 March 2017
PDF: 6 pages
Proc. SPIE 10132, Medical Imaging 2017: Physics of Medical Imaging, 101325K (9 March 2017); doi: 10.1117/12.2255657
Show Author Affiliations
Manuel P. Viermetz, Technische Univ. München (Germany)
Lorenz J. B. Birnbacher, Technische Univ. München (Germany)
Andreas Fehringer, Technische Univ. München (Germany)
Marian Willner, Technische Univ. München (Germany)
Peter B. Noel, Klinikum rechts der Isar der Technischen Univ. München (Germany)
Franz Pfeiffer, Technische Univ. München (Germany)
Julia Herzen, Technische Univ. München (Germany)

Published in SPIE Proceedings Vol. 10132:
Medical Imaging 2017: Physics of Medical Imaging
Thomas G. Flohr; Joseph Y. Lo; Taly Gilat Schmidt, Editor(s)

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