Electronic portal imaging.

Research output: Contribution to journalArticle

  • External authors:
  • M van Herk
  • A Bel
  • K G Gilhuijs
  • J V Lebesque
  • A van Dalen
  • P van der Ven
  • R Vijlbrief


In our institute, we have developed an electronic portal imaging system based on a matrix of 256 x 256 ionisation chambers. By improvements to the electronics, the system produces images with the same quality as the original system but 3-10 times faster. Software for automatic image analysis has been applied to more than 10,000 images over the last two years. Using an off-line correction strategy, the systematic patient set-up error has been limited to 5 mm or less for 98% of the patients treated for prostate cancer.

Bibliographical metadata

Original languageEnglish
JournalBulletin du cancer
Volume82 Suppl 5
Publication statusPublished - Dec 1995