ArticlePhysics and imaging in radiation oncology2023
Intrafraction motion analysis in online adaptive radiotherapy for esophageal cancer.
Article in Physics and imaging in radiation oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Benefits of daily online plan adaptation with reduced margins in neoadjuvant chemoradiotherapy for esophageal cancer.Physics and imaging in radiation oncology · 2026Article
- Adaptive radiotherapy for gastrointestinal malignancies.Radiation oncology (London, England) · 2025Review
- Imaging, automation and workflow challenges for online adaptive proton therapy.Physics and imaging in radiation oncology · 2025Article
- Cone Beam Computed Tomography-Based Online Adaptive Radiation Therapy of Esophageal Cancer: First Clinical Experience and Dosimetric Benefits.Advances in radiation oncology · 2025Article
- A simplified online adaptive workflow for long-course magnetic resonance-guided radiotherapy in esophageal cancer.Physics and imaging in radiation oncology · 2025Article
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Authors and funding
5 authors.
Funding
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Abstract
Intrafraction motion during magnetic resonance (MR)-guided dose delivery of esophageal cancer tumors was retrospectively analyzed. Deformable image registration of cine-MR series resulted in gross tumor volume motion profiles in all directions, which were subsequently filtered to isolate respiratory and drift motion. A large variability in intrafraction motion patterns was observed between patients. Median 95% peak-to-peak motion was 7.7 (3.7 - 18.3) mm, 2.1 (0.7 - 5.7) mm and 2.4 (0.5 - 5.6) mm in cranio-caudal, left-right and anterior-posterior directions, relatively. Furthermore, intrafraction drift was generally modest (<5mm). A patient specific approach could lead to very small margins (<3mm) for most patients.
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