Grating-based X-ray dark-field imaging: a new paradigm in radiography

Research output: Contribution to journalReview article

Abstract

Grating-based X-ray dark-field contrast is an emerging new imaging modality that is demonstrating particularly high potential for radiography. The signal in dark-field X-ray imaging is determined by small-angle X-ray scattering at structures typically below the spatial resolution of the imaging setup. Thus, this technique not only yields complementary information but also visualizes information that lies under the resolution limit for conventional, absorption-based radiography. Grating-based X-ray dark-field imaging has been shown to be feasible with both synchrotron radiation and conventional X-ray tubes. Lung, breast, and bone imaging have been identified as the applications promising the main impact, but other applications are on the horizon. Specifically, dark-field radiography has been used to detect pulmonary emphysema and assesses its regional distribution in mice and holds promise to improve the visualization of micro-calcifications in mammography and yields information about bone microstructure. Further technical developments are required to make the technique suitable for clinical use.

Details

Authors
  • Andre Yaroshenko
  • Katharina Hellbach
  • Martin Bech
  • Susanne Grandl
  • Maximilian F. Reiser
  • Franz Pfeiffer
  • Felix G. Meinel
Organisations
External organisations
  • Technical University of Munich
  • Ludwig-Maximilian University of Munich
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Radiology, Nuclear Medicine and Medical Imaging

Keywords

  • Grating interferometry, Lung imaging, Grating-based imaging, Pulmonary emphysema, X-ray dark-field imaging, X-ray phase-contrast imaging
Original languageEnglish
Article number57
Pages (from-to)1-9
JournalCurrent Radiology Reports
Volume2
Publication statusPublished - 2014 Jul 14
Publication categoryResearch
Peer-reviewedYes