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Experimental benchmarking of a Monte Carlo dose simulation code for pediatric CT

Publication ,  Journal Article
Xiang, L; Samei, E; Yoshizumi, T; Colsher, JG; Jones, RP; Frush, DP
Published in: Progress in Biomedical Optics and Imaging - Proceedings of SPIE
October 15, 2007

In recent years, there has been a desire to reduce CT radiation dose to children because of their susceptibility and prolonged risk for cancer induction. Concerns arise, however, as to the impact of dose reduction on image quality and thus potentially on diagnostic accuracy. To study the dose and image quality relationship, we are developing a simulation code to calculate organ dose in pediatric CT patients. To benchmark this code, a cylindrical phantom was built to represent a pediatric torso, which allows measurements of dose distributions from its center to its periphery. Dose distributions for axial CT scans were measured on a 64-slice multidetector CT (MDCT) scanner (GE Healthcare, Chalfont St. Giles, UK). The same measurements were simulated using a Monte Carlo code (PENELOPE, Universität de Barcelona) with the applicable CT geometry including bowtie filter. The deviations between simulated and measured dose values were generally within 5%. To our knowledge, this work is one of the first attempts to compare measured radial dose distributions on a cylindrical phantom with Monte Carlo simulated results. It provides a simple and effective method for benchmarking organ dose simulation codes and demonstrates the potential of Monte Carlo simulation for investigating the relationship between dose and image quality for pediatric CT patients.

Duke Scholars

Published In

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

DOI

ISSN

1605-7422

Publication Date

October 15, 2007

Volume

6510

Issue

PART 2
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Xiang, L., Samei, E., Yoshizumi, T., Colsher, J. G., Jones, R. P., & Frush, D. P. (2007). Experimental benchmarking of a Monte Carlo dose simulation code for pediatric CT. Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 6510(PART 2). https://doi.org/10.1117/12.713728
Xiang, L., E. Samei, T. Yoshizumi, J. G. Colsher, R. P. Jones, and D. P. Frush. “Experimental benchmarking of a Monte Carlo dose simulation code for pediatric CT.” Progress in Biomedical Optics and Imaging - Proceedings of SPIE 6510, no. PART 2 (October 15, 2007). https://doi.org/10.1117/12.713728.
Xiang L, Samei E, Yoshizumi T, Colsher JG, Jones RP, Frush DP. Experimental benchmarking of a Monte Carlo dose simulation code for pediatric CT. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. 2007 Oct 15;6510(PART 2).
Xiang, L., et al. “Experimental benchmarking of a Monte Carlo dose simulation code for pediatric CT.” Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 6510, no. PART 2, Oct. 2007. Scopus, doi:10.1117/12.713728.
Xiang L, Samei E, Yoshizumi T, Colsher JG, Jones RP, Frush DP. Experimental benchmarking of a Monte Carlo dose simulation code for pediatric CT. Progress in Biomedical Optics and Imaging - Proceedings of SPIE. 2007 Oct 15;6510(PART 2).

Published In

Progress in Biomedical Optics and Imaging - Proceedings of SPIE

DOI

ISSN

1605-7422

Publication Date

October 15, 2007

Volume

6510

Issue

PART 2