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X-ray Phase-contrast imaging

Martin Bech

Universitetslektor

X-ray Phase-contrast imaging

Iterative reconstruction for few-view grating-based phase-contrast CT : An in vitro mouse model

Författare

  • T. Gaass
  • G. Potdevin
  • M. Bech
  • P. B. Noël
  • M. Willner
  • A. Tapfer
  • F. Pfeiffer
  • A. Haase

Summary, in English

The aim of this work is to investigate the improvement of image quality in few-view grating-based phase-contrast computed tomography (PCCT) applications via compressed sensing (CS) inspired iterative reconstruction on an in vitro mouse model. PCCT measurements are performed on a grating-based PCCT setup using a high-brilliance synchrotron source and a conventional tube source. The sampling density of the data is reduced by a factor of up to 20 and iteratively reconstructed. It is demonstrated that grating-based PCCT intrinsically meets the major conditions for a successful application of CS. Contrast fidelity and the reproduction of details is presented in all reconstructed objects. The feasibility of the iterative reconstruction on data generated with a conventional X-ray source is illustrated on a fluid phantom and a mouse specimen, undersampled by a factor of up to 20.

Publiceringsår

2013

Språk

Engelska

Publikation/Tidskrift/Serie

EPL

Volym

102

Issue

4

Dokumenttyp

Artikel i tidskrift

Förlag

EDP Sciences

Ämne

  • Other Physics Topics

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0295-5075