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Design of a new Anthropometric Calibration Phantom for improving Accuracy of the Hounsfield Unit to Electron Density Calibration Curve

Stringer, Jimmy
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1721231337140037

Abstract Details

2024, PhD, University of Cincinnati, Engineering and Applied Science: Mechanical Engineering.
One of the largest sources of uncertainty in the calculation of stopping power ratios for use in proton radiotherapy is the measurement of Hounsfield Units (HU) for the determination of electron density. The primary source of this uncertainty is due to the relative difference in scatter between the patient and electron density calibration phantoms. In this dissertation, I will show how anatomy adaptive CT number to electron density calibration curves can improve the accuracy of stopping power ratio tabulations for proton radiation therapy dosimetry. We will generate new curves by measuring realistic (anthropomorphic) phantoms, fabricated using realistic tissue equivalent materials that accurately represent the internal structure and tissue types of the pelvis. The goal of this research is to use the new realistic anthropomorphic phantoms to evaluate how patient scatter affects measured electron density curves.
Henry Spitz, Ph.D. (Committee Chair)
Jay Kim, Ph.D. (Committee Member)
Michael Lamba, Ph.D. (Committee Member)
Bruce Mahoney (Committee Member)
Peter Sandwall, Ph.D M.A B.A. (Committee Member)
Michael Alexander-Ramos, Ph.D. (Committee Member)
Sam Glover, Ph.D. (Committee Member)
116 p.
Nuclear Physics
Electron Density Phantom; Proton Radiotherapy; Computed Tomography; Beam Hardening

Recommended Citations

Citations

  • Stringer, J. (2024). Design of a new Anthropometric Calibration Phantom for improving Accuracy of the Hounsfield Unit to Electron Density Calibration Curve [Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1721231337140037

    APA Style (7th edition)

  • Stringer, Jimmy. Design of a new Anthropometric Calibration Phantom for improving Accuracy of the Hounsfield Unit to Electron Density Calibration Curve. 2024. University of Cincinnati, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1721231337140037.

    MLA Style (8th edition)

  • Stringer, Jimmy. "Design of a new Anthropometric Calibration Phantom for improving Accuracy of the Hounsfield Unit to Electron Density Calibration Curve." Doctoral dissertation, University of Cincinnati, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1721231337140037

    Chicago Manual of Style (17th edition)

ucin1721231337140037
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© 2024, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.