title: High-resolution gel dosimetry using flat-panel detector cone-beam computed tomography: preliminary study.
abstract: This study compares the dose response of irradiated polymer gel with acrylic and styrofoam housing while applying multi-detector CT (MDCT) and cone-beam CT (CBCT). The dose response for MDCT and CBCT, while using an acrylic phantom is 1.34 and 0.67 DeltaHU Gy(-1), respectively, and becomes 1.54 and 0.84 DeltaHU Gy(-1) while using styrofoam, suggesting styrofoam is the better housing material. While the dose response of MDCT is better than that of CBCT, CBCT is yet a promising 3D dosimetry technique, given its potentially better spatial resolution and sensitive dose interpretation capability.
authors.affiliation: Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taiwan.
authors.forename: Kuo-Ming
authors.initials: KM
authors.lastname: Huang
authors.forename: Tzung-Chi
authors.initials: TC
authors.lastname: Huang
authors.forename: Chia-Jung
authors.initials: CJ
authors.lastname: Tsai
authors.forename: Kun-Mu
authors.initials: KM
authors.lastname: Lu
authors.forename: Liang-Kuang
authors.initials: LK
authors.lastname: Chen
authors.forename: Tung-Hsin
authors.initials: TH
authors.lastname: Wu
mesh_terms: D054893:Cone-Beam Computed Tomography / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005782:Gels / Q000528:radiation effects; D010865:Pilot Projects; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014963:X-Ray Intensifying Screens
chemical_list: D005782:Gels