Probabilistic coronary habitats enabled artery-focused cardiac sparing without angiography
Automatically predicted coronary habitats captured most arteries and enabled substantial dose reductions in three retrospectively replanned thoracic cases.
Tag
technical-relevance
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.
First on-treatment CBCT best predicted lung radiotherapy response in a small cohort
Adding the first treatment CBCT improved response and survival prediction, while additional scans progressively reduced classification performance.
Surface guidance matched skin marks for breast setup and reduced positioning variability
Single-camera surface guidance provided comparable mean setup accuracy with less variability, while intrafraction breast motion remained below 3 mm in most observations.
Simple phantoms increased students’ reported understanding of radiation medicine
Low-cost diagnostic and treatment phantoms improved students’ self-reported understanding of radiation medicine, although formal learning outcomes were not assessed.
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.
Hybrid radiomics model improved tomotherapy PSQA prediction but transferred poorly across centres
Combining plan complexity with three-dimensional dose radiomics improved tomotherapy PSQA prediction, although performance deteriorated substantially during cross-institution testing.
Biopsy localization uncertainty substantially altered HDR prostate brachytherapy dose estimates
Millimeter-scale localization uncertainty shifted assigned biopsy doses by several Gy and made nominal DVH threshold classification frequently unreliable.
Bragg peak proton FLASH matched CyberKnife plans and cut beam delivery to seconds
In 10 recurrent glioblastoma replans, Bragg peak proton FLASH improved conformity and reduced estimated beam delivery from approximately 17 minutes to under two seconds.
Additional PMMA changed mammography multimeter calibration coefficients by up to 42%
Spectral hardening altered multimeter calibration by up to 11% for kerma, 37% for HVL and 42% for voltage.
Early CBCT shifts failed to predict dosimetric compromise in head and neck VMAT
Early three-dimensional CBCT shifts performed no better than chance for identifying patients with at least 3% PTV coverage loss.
Deep-learning dose prediction generalized across six head and neck radiotherapy centres
A model trained at one centre closely predicted doses in 560 head and neck plans from six external institutions.
One RapidPlan model generated ocular stereotactic plans across three fractionation schedules
A single knowledge-based model generated comparable ocular plans for 25 Gy once, 42 Gy in three fractions and 50 Gy in five.
HyperSight protocol selection substantially changed CBCT organ dose
Low Dose HyperSight protocols reduced exposure by 55%, while Slow and Large protocols increased imaging dose and accentuated secondary-risk estimates.
Small gastrointestinal PRV margins limited dose increases but did not encompass pancreatic SABR motion
Two- to five-millimetre gastrointestinal margins usually limited delivered dose increases but frequently failed to encompass interfraction organ motion.