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Schlattl, H. ; Zankl, M. ; Hoeschen, C.

CTDIvol: A suitable normalization for CT dose conversion coefficients at different tube voltages?

In: Proceedings (SPIE Medical Imaging 2012: Physics of Medical Imaging, 04. - 09.02.12, San Diego, USA). Bellingham, USA: SPIE, 2012.:83131P (Proc. SPIE ; 8313)
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Reliable estimates for patient doses for CT examinations are desirable for the patients themselves as well as for new epidemiological studies. It has been shown that dose conversion coefficients normalized to CTDIvol provide rather scanner independent quantities. In this work, it is demonstrated that this normalization provides also tube voltage independent values by simulating axial CT scans of a seven-year old infant and an adult. The differences in the effective dose conversion coefficients per CTDIvol between 80 and 120 kV is for most body heights below 5%. Only at the height of the testes and the thyroid the difference can be as large as 15%. This results in differences of the effective dose conversion coefficient per CTDIvol between 80 and 120 kV of less than 6-7% for typical CT examinations.
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Publikationstyp Artikel: Konferenzbeitrag
Herausgeber Pelc, N.J.* ; Nishikawa, R.M.* ; Whiting, B.R.*
Schlagwörter CTDvol; CT examinations; patient dose; conversion coefficients; effective dose
Sprache englisch
Veröffentlichungsjahr 2012
HGF-Berichtsjahr 0
ISSN (print) / ISBN 0277-786X
e-ISSN 1996-756X
ISBN 9780819489623
Konferenztitel SPIE Medical Imaging 2012: Physics of Medical Imaging, 04. - 09.02.12, San Diego, USA
Konferenzband Proceedings
Zeitschrift Proceedings of SPIE
Quellenangaben Band: 8313, Heft: , Seiten: , Artikelnummer: 83131P Supplement: ,
Reihe Proceedings of SPIE
Verlag SPIE
Verlagsort Bellingham, USA
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Medical Radiation Physics and Diagnostics (AMSD)
POF Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er) Radiation Sciences
PSP-Element(e) G-503600-002
DOI 10.1117/12.910905
Scopus ID 84860374377
Erfassungsdatum 2012-10-30
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