Abstract
Deformable 3D dosimeters have potential applications in validating deformable dose mapping algorithms. This study evaluates a novel deformable PRESAGE® dosimeter and its application toward validating the deformable algorithm employed by VelocityAI. The deformable PRESAGE® dosimeter exhibited a linear dose response with a sensitivity of 0.0032 ΔOD/(Gy/cm). Comparison of an experimental dosimeter irradiated with an MLC pencilbeam checkerboard pattern under lateral compression up to 27% to a non-deformed control dosimeter irradiated with the same pattern verified dose tracking under deformation. CTs of the experimental dosimeter prior to and during compression were exported into VelocityAI and used to map an Eclipse dose distribution calculated on the compressed dosimeter to its original shape. A comparison between the VelocityAI dose distribution and the distribution from the dosimeter showed field displacements up to 7.3 mm and up to a 175% difference in field dimensions. These results highlight the need for validating deformable dose mapping algorithms to ensure patient safety and quality of care.
| Original language | English (US) |
|---|---|
| Article number | 012080 |
| Journal | Journal of Physics: Conference Series |
| Volume | 444 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2013 |
| Event | 7th International Conference on 3D Radiation Dosimetry, IC3DDose 2012 - Sydney, NSW, Australia Duration: Dec 4 2012 → Dec 8 2012 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Preliminary investigation and application of a novel deformable PRESAGE® dosimeter. / Juang, T.; Newton, J.; Das, S.; Adamovics, J.; Oldham, M.
In: Journal of Physics: Conference Series, Vol. 444, No. 1, 012080, 01.01.2013.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Preliminary investigation and application of a novel deformable PRESAGE® dosimeter
AU - Juang, T.
AU - Newton, J.
AU - Das, S.
AU - Adamovics, J.
AU - Oldham, M.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - Deformable 3D dosimeters have potential applications in validating deformable dose mapping algorithms. This study evaluates a novel deformable PRESAGE® dosimeter and its application toward validating the deformable algorithm employed by VelocityAI. The deformable PRESAGE® dosimeter exhibited a linear dose response with a sensitivity of 0.0032 ΔOD/(Gy/cm). Comparison of an experimental dosimeter irradiated with an MLC pencilbeam checkerboard pattern under lateral compression up to 27% to a non-deformed control dosimeter irradiated with the same pattern verified dose tracking under deformation. CTs of the experimental dosimeter prior to and during compression were exported into VelocityAI and used to map an Eclipse dose distribution calculated on the compressed dosimeter to its original shape. A comparison between the VelocityAI dose distribution and the distribution from the dosimeter showed field displacements up to 7.3 mm and up to a 175% difference in field dimensions. These results highlight the need for validating deformable dose mapping algorithms to ensure patient safety and quality of care.
AB - Deformable 3D dosimeters have potential applications in validating deformable dose mapping algorithms. This study evaluates a novel deformable PRESAGE® dosimeter and its application toward validating the deformable algorithm employed by VelocityAI. The deformable PRESAGE® dosimeter exhibited a linear dose response with a sensitivity of 0.0032 ΔOD/(Gy/cm). Comparison of an experimental dosimeter irradiated with an MLC pencilbeam checkerboard pattern under lateral compression up to 27% to a non-deformed control dosimeter irradiated with the same pattern verified dose tracking under deformation. CTs of the experimental dosimeter prior to and during compression were exported into VelocityAI and used to map an Eclipse dose distribution calculated on the compressed dosimeter to its original shape. A comparison between the VelocityAI dose distribution and the distribution from the dosimeter showed field displacements up to 7.3 mm and up to a 175% difference in field dimensions. These results highlight the need for validating deformable dose mapping algorithms to ensure patient safety and quality of care.
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U2 - 10.1088/1742-6596/444/1/012080
DO - 10.1088/1742-6596/444/1/012080
M3 - Conference article
AN - SCOPUS:84883391232
VL - 444
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012080
ER -