A parametric fitting technique for rapid determination of a skin-dose correction factor for angle of beam incidence during image-guided endovascular procedures

Sheng-Hsuan Sun; Stephen Rudin; Daniel R. Bednarek

doi:10.1117/12.2582019

15 February 2021 A parametric fitting technique for rapid determination of a skin-dose correction factor for angle of beam incidence during image-guided endovascular procedures

Sheng-Hsuan Sun, Stephen Rudin, Daniel R. Bednarek

Author Affiliations +

Proceedings Volume 11595, Medical Imaging 2021: Physics of Medical Imaging; 115953L (2021) https://doi.org/10.1117/12.2582019
Event: SPIE Medical Imaging, 2021, Online Only

Conference Poster

Abstract

Monte-Carlo software was used to calculate the “patient’s skin-dose” averaged over 1 mm skin thickness as a function of incident beam-to-skin angle from 90 to 10 degrees for entrance-beam sizes from 5 to 15 cm, energies from 60 to 120 kVp, and thicknesses of Cu beam filters from 0.2 to 0.5 mm in a water phantom to obtain an angular-correction-factor (ACF). The Matlab tool, ‘cftool’, was used to fit these ACF’s to formulas as a function of incident beam angle and kVp, allowing the ACF to be quickly determined for accurate skin-dose calculation during fluoroscopically-guided procedures.

Conference Presentation

Citation Download Citation

Sheng-Hsuan Sun, Stephen Rudin, and Daniel R. Bednarek "A parametric fitting technique for rapid determination of a skin-dose correction factor for angle of beam incidence during image-guided endovascular procedures", Proc. SPIE 11595, Medical Imaging 2021: Physics of Medical Imaging, 115953L (15 February 2021); https://doi.org/10.1117/12.2582019

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