Complex deformable dose accumulation rarely changed adaptive SBRT decisions
More accurate deformable registration lowered estimated bowel dose, but produced nearly identical in-treatment adaptation decisions to simple DVH summation.
Tag
dose-calculation
PTV coverage prescriptions poorly represented delivered tumor dose in lung SBRT
D95% and D98% PTV prescriptions produced substantial interpatient variability, while GTV- and ITV-based median or mean doses were more accurate.
Brainlab reference beam model enabled one-day SRS commissioning with accurate Monte Carlo calculations
Brainlab Elements commissioning was completed in one day, while Monte Carlo generally agreed with end-to-end measurements within 3%.
Deformable registration substantially changed cumulative dose estimates in stereotactic re-irradiation
DIR reduced estimated liver maximum dose from 123.8 to 83.2 Gy, but accuracy deteriorated markedly for bowel and stomach.
Transformer dose engine achieved near-Monte Carlo accuracy for carbon ion therapy
The Transformer calculated carbon-ion pencil-beam doses in 14 milliseconds with 98.0% gamma agreement at stringent 1%/1 mm criteria.
GPU dose engine calculated MRI-guided proton plans within 14 seconds
gPRIDE closely matched Monte Carlo calculations for most anatomies and completed MRI-guided proton dose calculations within 13.7 seconds.
Acuros XB increased synthetic CT dose differences but remained clinically acceptable
Acuros XB was more sensitive than AAA to synthetic CT discrepancies, but target-dose differences remained small in prostate and glioma plans.
Bidirectional GAN preserved CT numbers and dose accuracy in head-and-neck planning CT
BiHU-GAN generated synthetic contrast and non-contrast CT with high contour agreement and at least 95% gamma pass rates at 2%/2 mm.
Rectal air did not compromise prostate online adaptive radiotherapy robustness
Rectal air or air-filled balloons did not cause clinically relevant dose increases when posterior tissue shifts stayed within 5 millimetres.
Upright computed tomography showed stable numbers for proton therapy planning
Upright computed tomography showed stable computed tomography numbers and greater than 99% proton dose gamma agreement versus conventional computed tomography.
Commercial lung phantom density errors can reduce target coverage by 3%
Lot-to-lot density variation in lung-equivalent inserts reduced planning target volume coverage by up to 3%, exceeding the stated clinical tolerance.