OCTAVIUS 4D achieved 98.3% gamma passing for MR-LINAC SBRT QA
Across 40 Unity SBRT plans, OCTAVIUS 4D achieved 98.3% mean local gamma passing with sub-degree angular agreement.
Tag
mr-guided
Five-fraction MR-guided prostate-bed radiotherapy showed low early toxicity
No grade 3 toxicity occurred after five-fraction MR-guided salvage radiotherapy, while urinary and bowel quality-of-life scores remained stable.
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.
MRI-guided prostate SBRT reduced low-dose exposure to sexual-function structures
MRI-guided SBRT with 2-mm margins reduced low- and intermediate-dose exposure of neurovascular bundles and pudendal arteries versus CT-guided treatment.
Magnetic resonance-only simulation supported prostate magnetic resonance-guided stereotactic body radiotherapy
Magnetic resonance-only prostate simulation achieved 96.80% local gamma agreement using synthetic computed tomography for dose calculation.
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.
Two-hour fasting did not reliably stabilize stomach volume during pancreatic stereotactic radiotherapy
Standardized two-hour fasting produced reproducible stomach volumes in only 42% of patients receiving magnetic resonance-guided pancreatic stereotactic radiotherapy.