The dose response of normoxic polymer gel dosimeters measured using X-ray CT

被引：55
|
作者：
Hill, B
Venning, A
Baldock, C
机构：
[1] Canberra Hosp, Biomed Engn Serv, Med Phys Sect, Woden, ACT 2606, Australia
[2] Queensland Univ Technol, Sch Phys & Chem Sci, Brisbane, Qld, Australia
[3] Univ Sydney, Sch Phys, Inst Med Phys, Sydney, NSW 2006, Australia
来源：
BRITISH JOURNAL OF RADIOLOGY | 2005年 / 78卷 / 931期
关键词：
D O I：
10.1259/bjr/46029447
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
X-ray CT was used to determine the dose response of normoxic polymer gel dosimeters. Normoxic polymer gel dosimeters were manufactured and irradiated up to 150 Gy. Up to 50 CT images were acquired oil a Toshiba Aquilion Multislice CT scanner using protocols for 80 kV and 135 kV to determine dose response. HU-dose sensitivity, the linear regression of data for the HU versus dose for the linear part of the curve LIP to 60 Gy was 0.38 +/- 0.07 HU Gy(-1) for 135 kV and 0.37 +/- 0.01 H U Gy(-1) for 80 kV. Dose resolution was found to be < 1.3 Gy for all absorbed dose range up to 70 Gy for 135 kV, similar to that measured previously for polyacrylamide gel (PAG). Although the HU-dose sensitivity was lower than that previously measured for PAG gel dosimeters it had a greater range of absorbed dose indicating that normoxic polymer gel dosimeters have potential in CT gel dosimetry.
引用
收藏
页码：623 / 630
页数：8
相关论文
共 50 条
  • [31] Experimental study of attenuation properties of normoxic polymer gel dosimeters
    Brindha, S
    Venning, AJ
    Hill, B
    Baldock, C
    PHYSICS IN MEDICINE AND BIOLOGY, 2004, 49 (20): : N353 - N361
  • [32] Experimental investigation of the attenuation properties of normoxic polymer gel dosimeters
    Brindha, S
    Venning, A
    Hill, B
    Baldock, C
    MEDICAL PHYSICS, 2004, 31 (06) : 1886 - 1886
  • [33] Commissioning a Multislice CT Scanner for X-Ray CT Polymer Gel Dosimetry
    Johnston, H.
    Hilts, M.
    Jirasek, A.
    MEDICAL PHYSICS, 2014, 41 (06) : 238 - 238
  • [34] Thermoluminescent dosimeters for low dose X-ray measurements
    Del Sol Fernandez, S.
    Garcia-Salcedo, R.
    Sanchez-Guzman, D.
    Ramirez-Rodriguez, G.
    Gaona, E.
    de Leon-Alfaro, M. A.
    Rivera-Montalvo, T.
    APPLIED RADIATION AND ISOTOPES, 2016, 107 : 340 - 345
  • [35] Optical Evaluation of normoxic PAGAT polymer gel dosimeters used to measure SWDP on diagnostic CT scanners
    Sarabipour, Sarvenaz
    Bosi, Stephen
    Hill, Brendan
    Baldock, Clive
    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006, VOL 14, PTS 1-6, 2007, 14 : 1606 - 1608
  • [36] Optical analysis of gel dosimeters: Comparison of Fricke and normoxic polymer gels
    Gambarini, G.
    Carrara, M.
    Mariani, A.
    Pirola, L.
    Tomatis, S.
    Valente, M.
    Vanossi, E.
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2007, 263 (01): : 191 - 195
  • [37] Dose response evaluation of a low-density normoxic polymer gel dosimeter using MRI
    Haraldsson, P
    Karlsson, A
    Wieslander, E
    Gustavsson, H
    Bäck, SÅJ
    PHYSICS IN MEDICINE AND BIOLOGY, 2006, 51 (04): : 919 - 928
  • [38] Technical considerations for implementation of X-ray CT polymer gel dosimetry
    Hilts, M
    Jirasek, A
    Duzenli, C
    PHYSICS IN MEDICINE AND BIOLOGY, 2005, 50 (08): : 1727 - 1745
  • [39] Introduction of a deformable x-ray CT polymer gel dosimetry system
    Maynard, E.
    Heath, E.
    Hilts, M.
    Jirasek, A.
    PHYSICS IN MEDICINE AND BIOLOGY, 2018, 63 (07):
  • [40] Incorporating multislice imaging into x-ray CT polymer gel dosimetry
    Johnston, H.
    Hilts, M.
    Jirasek, A.
    MEDICAL PHYSICS, 2015, 42 (04) : 1666 - 1677
12345