US 12,089,982 B2
Calibration phantom for radiotherapy
Jimmy Steele Stringer, III, Cincinnati, OH (US); Henry Spitz, Cincinnati, OH (US); Peter Sandwall, Cincinnati, OH (US); Michael Lamba, Cincinnati, OH (US); and Samuel Glover, Lebanon, OH (US)
Assigned to University of Cincinnati, Cincinnati, OH (US)
Filed by University of Cincinnati, Cincinnati, OH (US)
Filed on Jul. 13, 2022, as Appl. No. 17/864,361.
Claims priority of provisional application 63/221,384, filed on Jul. 13, 2021.
Prior Publication US 2023/0036916 A1, Feb. 2, 2023
Int. Cl. A61B 6/00 (2024.01); A61B 6/58 (2024.01)
CPC A61B 6/583 (2013.01) 18 Claims
OG exemplary drawing
 
1. A calibration phantom for radiometric characterization and/or radiotherapy dose calculation of a subject, comprising:
an ellipsoid base having a primary volume defining a plurality of cylindrical voids, each of said cylindrical voids configured to receive a cylindrical insert having a diameter, wherein the ellipsoid base, the primary volume, and each of said inserts are formed from a tissue substitution material independently selected to approximate a radiological property of an anatomical feature of the subject to which the ellipsoid base, the primary volume, and each of said inserts corresponds,
wherein the radiological property of the tissue substitution material, the diameter of each of said inserts, and a location of each of said inserts within the ellipsoid base are selected to mimic beam hardening upon exposure of the calibration phantom to a radiation beam; and
wherein the location of each of said inserts is selected to mimic the anthropomorphic and/or anthropometric characteristics of a head, neck, torso, chest, arm, leg, pelvis, or body of the subject.