ArticleThe British journal of radiology2023
Evaluation of tumour motion and internal/external correlation in lung SABR.
Article in The British journal of radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Mid-ventilation PTV approach for stereotactic ablative body radiotherapy in stage I non-small-cell lung carcinoma: Implementation of a single-system workflow.Technical innovations & patient support in radiation oncology · 2026Article
- Initial Experience with Correlation Object-Based DRR Targeting Using Stereoscopic X-Ray Imaging in Lung SBRT.Cancers · 2026Article
- Patient-specific factors associated with tumour motion in lung stereotactic body radiation therapy from real-time tumour tracking traces.Physics and imaging in radiation oncology · 2026Article
- Investigation into the utility of ultra-high-resolution mode on dynamic-ventilation computed tomography using sponge phantoms.Scientific reports · 2025Article
- Markerless tumor tracking for lung SBRT with the Radixact Synchrony system: Initial experience and short-term clinical outcomes.Journal of applied clinical medical physics · 2025Article
- Feasibility of a real-time dual energy markerless monitoring of lung tumors using a clinical room-mounted stereoscopic and monoscopic x-ray imaging system.Medical physics · 2025Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThis study aims to analyse lung tumour motion and to investigate the correlation between the internal tumour motion acquired from four-dimensional computed tomography (4DCT) and the motion of an external surrogate.
methodsA data set of 363 4DCT images was analysed. Tumours were classified based on their anatomical lobes. The recorded gross tumour volume (GTV) information included the centroid GTV motion in the superior-inferior, anteroposterior and left-right directions, and in three-dimensions (3D). For the internal/external correlation, the RPM surrogate breathing signals of 260 patients were analysed via an in-house script. The external motion was correlated with the 3D centroid motion, and the maximum tumour motion via Spearman's correlation. The effect of tumour volume on the amount of motion was evaluated.
resultsThe greatest 3D tumour amplitude was found for tumours located in the lower part of the lung, with a maximum of 26.7 mm. The Spearman's correlation of the internal 3D motion was weak in the upper (
conclusionOur results suggest that tumour location can be a good predictor of its motion. However, tumour size is a poor predictor of the motion. ADVANCES IN KNOWLEDGE: This knowledge of the distribution of tumour motion throughout the thoracic regions will be valuable to research groups investigating the refinement of motion management strategies.
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