ArticleRadiation oncology (London, England)2019
Intrafractional 6D head movement increases with time of mask fixation during stereotactic intracranial RT-sessions.
Article in Radiation oncology (London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03896555 (Intrafractional 6D Head Movement With Mask Fixation During Stereotactic Intracranial RT-sessions), which is not on this map. Cited by 20 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Intrafractional 6D Head Movement With Mask Fixation During Stereotactic Intracranial RT-sessions
Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.
- Pooled it
- Performance of a Novel Frameless and Maskless Robotic Head Motion Compensation System for Stereotactic Radiosurgery in a Realistic Clinical Environment with Healthy Volunteers.International journal of radiation oncology, biology, physics · 2026Article
- Control-point-specific plan robustness in volumetric modulated arc therapy-based cranial radiotherapy.Journal of applied clinical medical physics · 2026Article
- The feasibility of using coplanar-only VMAT combined with "Treat" function to replace non-coplanar VMAT for SRS of 2 to 6 brain metastases.Quantitative imaging in medicine and surgery · 2025Article
- Coplanar DCA-based hypofractionated stereotactic radiotherapy for very small brain metastasis from non-small cell lung cancer: treatment planning comparison with coplanar VMAT and preliminary clinical outcome.Physical and engineering sciences in medicine · 2025Article
- Non-coplanar CBCT image reconstruction using a generative adversarial network for non-coplanar radiotherapy.Journal of applied clinical medical physics · 2024Article
- Stereotactic Radiosurgery of Multiple Brain Metastases: A Review of Treatment Techniques.Cancers · 2023Review
- Single-Isocenter Linac-Based Radiosurgery for Brain Metastases with Coplanar Arcs: A Dosimetric and Clinical Analysis.Cancers · 2023Article
- Commissioning, clinical implementation, and initial experience with a new brain tumor treatment package on a low-field MR-linac.Journal of applied clinical medical physics · 2023Article
- Multicomponent mathematical model for tumor volume calculation with setup error using single-isocenter stereotactic radiotherapy for multiple brain metastases.Physical and engineering sciences in medicine · 2023Article
- Radiosurgical treatment of solitary brain metastases using virtual cones with a standard multileaf collimator.Journal of applied clinical medical physics · 2023Article
- Geometric and dosimetric consequences of intra-fractional movement in single isocenter non-coplanar stereotactic radiosurgery.Radiation oncology (London, England) · 2023Article
- Intrafractional monitoring of patients using four different immobilization mask systems for cranial radiotherapy.Physics and imaging in radiation oncology · 2022Article
- Investigating the impacts of intrafraction motion on dosimetric outcomes when treating small targets with virtual cones.Journal of applied clinical medical physics · 2021Article
- Article
- Article
- Maximum distance in single-isocenter technique of stereotactic radiosurgery with rotational error using margin-based analysis.Radiological physics and technology · 2021Article
- Performance assessment of two motion management systems for frameless stereotactic radiosurgery.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2021Article
- Effect of setup error in the single-isocenter technique on stereotactic radiosurgery for multiple brain metastases.Journal of applied clinical medical physics · 2020Article
- Patient Cranial Angle and Intrafractional Stability in CyberKnife Robotic Radiosurgery: A Retrospective Analysis.Technology in cancer research & treatmentArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe present study investigates the intrafractional accuracy of a frameless thermoplastic mask used for head immobilization during stereotactic radiotherapy. Non-invasive masks cannot completely prohibit head movements. Previous studies attempted to estimate the magnitude of intrafractional inaccuracy by means of pre- and postfractional measurements only. However, this might not be sufficient to accurately map also intrafractional head movements. MATERIALS AND
methodsIntrafractional deviation of mask-fixed head positions was measured in five patients during a total of 94 fractions by means of close-meshed repeated ExacTrac measurements (every 1.4 min) conducted during the entire treatment session. A median of six (range: 4 to 11) measurements were recorded per fraction, delivering a dataset of 453 measurements.
resultsRandom errors (SD) for the x, y and z axes were 0.27 mm, 0.29 mm and 0.29 mm, respectively. Median 3D deviation was 0.29 mm. Of all 3D intrafractional motions, 5.5 and 0.4% exceeded 1 mm and 2 mm, respectively. A moderate correlation between treatment duration and mean 3D displacement was determined (r
conclusionPre- and post-treatment measurement is not sufficient to adequately determine the range of intrafractional head motion. Thermoplastic masks provide both reliable interfractional and intrafractional immobilization for image-guided stereotactic hypofractionated radiotherapy. Greater positioning accuracy may be obtained by reducing treatment duration (< 6 min) and applying intrafractional correction.
trial registrationClinicaltrials.gov, NCT03896555, Registered 01 April 2019 - retrospectively registered.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.