Dynamic determination of equivalent CT source models for personalized dosimetry

With improvements in CT technology, the need for reliable patient-specific dosimetry increased in the recent years. The accuracy of Monte-Carlo simulations for absolute dose estimation is related to scanner specific information on the X-ray spectra of the scanner as well as the form filter geometrie...

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Bibliographic Details
Published in:Current directions in biomedical engineering 2017-09, Vol.3 (2), p.791-794
Main Authors: Rosendahl, Stephan, Büermann, Ludwig
Format: Article
Language:English
Subjects:
Bow-Tie Filter
Personalized Dosimetry
X-ray Spectra
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Summary:With improvements in CT technology, the need for reliable patient-specific dosimetry increased in the recent years. The accuracy of Monte-Carlo simulations for absolute dose estimation is related to scanner specific information on the X-ray spectra of the scanner as well as the form filter geometries and compositions. In this work a mobile measurement setup is developed, which allows both to determine the X-ray spectra and equivalent form filter of a specific scanner from just one helical scan in less than 2 minutes.
ISSN:2364-5504
2364-5504
DOI:10.1515/cdbme-2017-0167