In minimally invasive surgery video endoscopes show salt-and-pepper artifacts when used together with an X-ray device. Since the semiconductor material of the CCD chip interacts with the X-ray photons via photoelectric absorption and Compton scattering, it is not clear if these interactions produce irreversible damages within a typical working window in all day use in a clinical environment. The present study was accomplished at the X-ray Lab of the RheinAhrCampus Remagen in the period between March and July 2006. It deals with the question if a CCD chip of a modern medical endoscope undergo irreversible alterations during a 28 hour radiation load using a commercial C-arm. The report describes the experimental set-up and the characteristic properties for CCD quality assessment, i.e. temporal behaviour of background noise and statistics of X-ray affected pixels of the CCD chip. We do not find any indication of a permanent quality degradation of the CCD chip after 28 hour X-ray exposure.
Original languageEnglish
Title of host publicationAdvances in Medical Engineering
EditorsThorsten M. Buzug, Dietrich Holz, Jens Bongartz, Matthias Kohl-Bareis, Ulrich Hartmann, Simone Weber
Number of pages6
Place of PublicationBerlin, Heidelberg
PublisherSpringer Berlin Heidelberg
Publication date01.01.2007
ISBN (Print)978-3-540-68763-4
ISBN (Electronic)978-3-540-68764-1
Publication statusPublished - 01.01.2007


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