ArticleJournal of applied clinical medical physics2024
Evaluating intra-fractional tumor motion in lung stereotactic radiotherapy with deep inspiration breath-hold.
Article in Journal of applied clinical medical physics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Impact of surface-guided prepositioning and respiratory coaching on the target localization accuracy in lung stereotactic body radiation therapy.Radiological physics and technology · 2026Article
- 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
- Effects of breath-hold reproducibility on proton and photon lung cancer stereotactic body radiotherapy.Physics and imaging in radiation oncology · 2026Article
- Dosimetric and treatment efficiency comparison of lung SBRT using three different motion management strategies.Clinical and translational radiation oncology · 2026Article
- Quantifying interplay effects in lung cancer IMPT: a comprehensive analysis of treatment planning parameter sensitivity.BMC cancer · 2025Article
- Dosimetric evaluation of cone beam computed tomography-guided online adaptive radiotherapy in gastric mucosa-associated lymphoid tissue lymphoma.Technical innovations & patient support in radiation oncology · 2025Article
- Application of respiratory motion management technology for patients with lung cancer treated with stereotactic body radiotherapy (Review).Oncology letters · 2025Review
- Evaluating intra-fractional tumor motion in lung stereotactic radiotherapy with deep inspiration breath-hold.Journal of applied clinical medical physics · 2024Article
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Abstract
purposeTo evaluate the intra-fractional tumor motion in lung stereotactic body radiotherapy (SBRT) with deep inspiration breath-hold (DIBH), and to investigate the adequacy of the current planning target volume (PTV) margins.
methodsTwenty-eight lung SBRT patients with DIBH were selected in this study. Among the lesions, twenty-three were at right or left lower lobe, two at right middle lobe, and three at right or left upper lobe. Post-treatment gated cone-beam computed tomography (CBCT) was acquired to quantify the intra-fractional tumor shift at each treatment. These obtained shifts were then used to calculate the required PTV margin, which was compared with the current applied margin of 5 mm margin in anterior-posterior (AP) and right-left (RL) directions and 8 mm in superior-inferior (SI) direction. The beam delivery time was prolonged with DIBH. The actual beam delivery time with DIBH (T
resultsA total of 113 treatments were analyzed. At six treatments (5.3%), the shifts exceeded the tolerance defined by the current PTV margin. The average shifts were 0.0 ± 1.9 mm, 0.1±1.5 mm, and -0.5 ± 3.7 mm in AP, RL, and SI directions, respectively. The required PTV margins were determined to be 4.5, 3.9, and 7.4 mm in AP, RL, and SI directions, respectively. The average T
conclusionIntra-fractional tumor motion is the predominant source of treatment uncertainties in CBCT-guided lung SBRT with DIBH. The required PTV margin should be determined based on data specific to each institute, considering different techniques and populations. Our data indicate that our current applied PTV margin is adequate, and it is possible to reduce further in the RL direction. The time increase of T
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