Electronic portal imaging

M. van Herk, A. Bel, K. G. Gilhuijs, J. V. Lebesque, A. van Dalen, P. van der Ven, R. Vijlbrief

Research output: Contribution to JournalArticleAcademicpeer-review

5 Citations (Scopus)


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
Original languageEnglish
Pages (from-to)601s-606s
JournalBulletin du cancer
Issue numberSuppl. 5
Publication statusPublished - 1995

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