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Proceedings Paper

Dose conversion coefficients for partial-fan CBCT scans
Author(s): Helmut Schlattl
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Paper Abstract

Due to the increasing number of cone-beam CT (CBCT) devices on the market, reliable estimates of patient doses for these imaging modality is desired. Cone-beam CT devices differ from conventional CT not only by a larger collimation but also by different recording modes. In this work, it has been investigated whether reliable patient doses can be obtained for CBCT devices in partial-fan mode using pre-computed slices. As an exemplary case, chest CBCT scans for the ICRP reference adult models has been examined. By normalizing organ doses to CTDI100w , the resulting dose conversion coefficients for CBCT could be well reproduced by precomputed slices, with a relative difference in the effective dose conversion coefficients of less than 10%.

Paper Details

Date Published: 9 March 2017
PDF: 6 pages
Proc. SPIE 10132, Medical Imaging 2017: Physics of Medical Imaging, 1013241 (9 March 2017); doi: 10.1117/12.2250571
Show Author Affiliations
Helmut Schlattl, Helmholtz Zentrum München GmbH (Germany)


Published in SPIE Proceedings Vol. 10132:
Medical Imaging 2017: Physics of Medical Imaging
Thomas G. Flohr; Joseph Y. Lo; Taly Gilat Schmidt, Editor(s)

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