Time-gated imaging in planar and tomographic x-ray imaging

Research output: Contribution to journalArticle


Time-gated imaging is a new technique for scatter suppression in radiological imaging, based on the use of ultrashort x-ray pulses in combination with a fast gatable detector. We demonstrate scatter suppression in both planar and computed tomography (CT) radiography in an experimental model using x rays from a laser-produced plasma. The scatter-suppression efficiency of time-gated imaging is found to be similar to existing standard techniques. Furthermore, it allows for a potential decrease in patient dose. Monte-Carlo simulations confirm these results. We present an overview including theoretical simulations, experimental studies and comparisons to established techniques. The current technical limitations are evaluated and possible future applications in volumetric CT imaging are discussed. (C) 1999 American Association of Physicists ill Medicine. [S0094-2405(99)00903-7].


  • M Gratz
  • L Kiernan
  • K Herrlin
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Biophysics
Original languageEnglish
Pages (from-to)438-446
JournalMedical Physics
Issue number3
Publication statusPublished - 1999
Publication categoryResearch
Externally publishedYes