Computed tomography geometric distortion was measurable across radiotherapy planning scanners
All eight radiotherapy planning computed tomography scanners showed measurable geometric distortion, with maximum values up to 1.88 millimetres.
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Technical relevance
Automated report-based chart checking detected residual errors after physics review
An automated report-based chart checker detected residual errors in 37.1% of manually reviewed external beam radiotherapy plans.
Optical surface imaging supported Monte Carlo dosimetry for total skin electron therapy
Photogrammetry-derived body surface models enabled Monte Carlo evaluation of total skin electron therapy dose homogeneity and hot-cold spot locations.
Volumetric modulated arc therapy complexity surveillance predicted patient-specific quality assurance results
Aperture irregularity and modulation complexity score were the strongest plan-complexity predictors of patient-specific quality assurance pass rate.
Shared-source toolkit integrated spatially fractionated radiation therapy planning inside Eclipse
A shared-source Eclipse toolkit unified lattice generation, position-aware optimization, and peak-valley dose ratio evaluation for spatially fractionated radiation therapy.
Radiomics reproducibility depended on preprocessing in low-field magnetic resonance-guided radiotherapy
N4 bias correction with z-score normalization produced the most stable radiomic features on a 0.35 tesla magnetic resonance linear accelerator.
Virtual magnetic resonance linear accelerator improved adaptive pelvic lymph node radiotherapy dosimetry
Daily magnetic resonance-informed adaptation increased target coverage by 14% and reduced bowel dose by 7% for pelvic lymph node metastases.
Scanned and scattered proton beams showed similar tumor killing in Ewing sarcoma models
Scanned and scattered clinical proton beams produced similar Ewing sarcoma cell survival despite higher oxidative stress signals after scanned delivery.
Aperture-enhanced proton radiosurgery reduced normal brain dose for cerebral arteriovenous malformations
Aperture-enhanced proton stereotactic radiosurgery reduced normal brain dose compared with photon plans in most cerebral arteriovenous malformation cases.
Microstructure air chamber showed linear dose response for conventional and ultra-high dose rate radiotherapy
A thick gas electron multiplier air chamber showed strong dose linearity under conventional and ultra-high dose rate conditions.
Larger bladder geometry was linked to lower planned bladder dose in prostate radiotherapy
Larger bladder volume was strongly associated with lower planned bladder dose in a static five-fraction prostate radiotherapy analysis.
Posterior tumour drift threatens lung stereotactic ablative radiotherapy target coverage
In free-breathing lung stereotactic ablative radiotherapy, posterior drift exceeded the 4-millimetre margin in 15.7% of patients within 20 minutes.
Deep learning stopping power maps supported magnetic resonance-only proton planning for brain tumors
Synthetic stopping power maps showed small target dose differences, but residual range and low-dose gamma errors still require further validation.
Deep learning synthetic computed tomography supported head-and-neck adaptive radiotherapy dose recalculation
Synthetic computed tomography from cone-beam computed tomography achieved a 98.7% gamma pass rate for head-and-neck dose recalculation.
Direct cord robust optimization preserved target coverage near the spinal cord
In ten paraspinal chordoma plans, direct cord robust optimization improved coverage and robustness while maintaining acceptable spinal cord doses.