TY - JOUR
T1 - Feasibility of PET/CT 3-D dosimetry for proton-activated PRESAGE® dosimeters
AU - Carroll, M.
AU - Ibbott, G.
AU - Adamovics, J.
N1 - Publisher Copyright:
© 2015 IOP Publishing Ltd.
PY - 2015
Y1 - 2015
N2 - A feasibility study is considered using PRESAGE® dosimeters as a direct dosimetry comparison tool to correlate proton activation to dose in a clinical beam. Proton activation measured by PET/CT has been studied as a future tool method for in vivo dosimetry. PRESAGE® is a 3D offline dosimeter that has a material composition giving it a longer activation decay time than similar dosimeters allowing easier measurements. In this study, the PRESAGE® positron emissions were measured by PET and directly compared to dose measurements made by optical-CT to make spatial comparisons of dose and proton activation. Profiles along the central axis of the beam found a shift in the distal-80% resulting in the proton activation profile being 1 cm shallower than the dose profile. Cross beam profiles demonstrated little discrepancy between long (3 hour) and short (30 minute) PET scan times.
AB - A feasibility study is considered using PRESAGE® dosimeters as a direct dosimetry comparison tool to correlate proton activation to dose in a clinical beam. Proton activation measured by PET/CT has been studied as a future tool method for in vivo dosimetry. PRESAGE® is a 3D offline dosimeter that has a material composition giving it a longer activation decay time than similar dosimeters allowing easier measurements. In this study, the PRESAGE® positron emissions were measured by PET and directly compared to dose measurements made by optical-CT to make spatial comparisons of dose and proton activation. Profiles along the central axis of the beam found a shift in the distal-80% resulting in the proton activation profile being 1 cm shallower than the dose profile. Cross beam profiles demonstrated little discrepancy between long (3 hour) and short (30 minute) PET scan times.
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U2 - 10.1088/1742-6596/573/1/012071
DO - 10.1088/1742-6596/573/1/012071
M3 - Conference article
AN - SCOPUS:84946234158
SN - 1742-6588
VL - 573
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012071
T2 - 8th International Conference on 3D Radiation Dosimetry, IC3DDose 2014
Y2 - 4 September 2014 through 7 September 2014
ER -