ArticleJournal of applied clinical medical physics2019
Impact of use of optical surface imaging on initial patient setup for stereotactic body radiotherapy treatments.
Article in Journal of applied clinical medical physics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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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.
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Who cites it
16 citing papers in PubMed.
- Analysis of setup error and setup efficiency in SBRT for non-small cell lung cancer via a surface-guided radiation therapy system.BMC cancer · 2025Article
- A novel SGRT system for real-time optical surface tracking or guidance.Journal of applied clinical medical physics · 2025Article
- Data-Driven Volumetric Computed Tomography Image Generation From Surface Structures Using a Patient-Specific Deep Leaning Model.International journal of radiation oncology, biology, physics · 2025Article
- SGRT-based stereotactic body radiotherapy for lung cancer setup accuracy and margin of the PTV.Journal of applied clinical medical physics · 2024Article
- Surface-Guided Radiotherapy: Can We Move on from the Era of Three-Point Markers to the New Era of Thousands of Points?Bioengineering (Basel, Switzerland) · 2023Review
- Setup accuracy and margins for surface-guided radiotherapy (SGRT) of head, thorax, abdomen, and pelvic target volumes.Scientific reports · 2023Article
- Evaluation of initial patient setup methods for breast cancer between surface-guided radiation therapy and laser alignment based on skin marking in the Halcyon system.Radiation oncology (London, England) · 2023Article
- Advances and potential of optical surface imaging in radiotherapy.Physics in medicine and biology · 2022Review
- Article
- Feasibility of surface guided radiotherapy for patient positioning in breast radiotherapy versus conventional tattoo-based setups- a systematic review.Technical innovations & patient support in radiation oncology · 2022Article
- AAPM task group report 302: Surface-guided radiotherapy.Medical physics · 2022Review
- Accuracy evaluation of surface registration algorithm using normal distribution transform in stereotactic body radiotherapy/radiosurgery: A phantom study.Journal of applied clinical medical physics · 2022Article
- A review of surface guidance in extracranial stereotactic body radiotherapy (SBRT/SABR) for set-up and intra-fraction motion management.Technical innovations & patient support in radiation oncology · 2022Article
- Recent advanced in Surface Guided Radiation Therapy.Radiation oncology (London, England) · 2020Review
- Feasibility of Optical Surface-Guidance for Position Verification and Monitoring of Stereotactic Body Radiotherapy in Deep-Inspiration Breath-Hold.Frontiers in oncology · 2020Article
- Analysis of Surface Guidance Versus Laser Alignment for Precision Lung Cancer Particle Therapy.Technology in cancer research & treatmentArticle
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
purposeTo evaluate the effectiveness of surface image guidance (SG) for pre-imaging setup of stereotactic body radiotherapy (SBRT) patients, and to investigate the impact of SG reference surface selection on this process. METHODS AND MATERIALS: 284 SBRT fractions (SG-SBRT = 113, non-SG-SBRT = 171) were retrospectively evaluated. Differences between initial (pre-imaging) and treatment couch positions were extracted from the record-and-verify system and compared for the two groups. Rotational setup discrepancies were also computed. The utility of orthogonal kVs in reducing CBCT shifts in the SG-SBRT/non-SG-SBRT groups was also calculated. Additionally, the number of CBCTs acquired for setup was recorded and the average for each cohort was compared. These data served to evaluate the effectiveness of surface imaging in pre-imaging patient positioning and its potential impact on the necessity of including orthogonal kVs for setup. Since reference surface selection can affect SG setup, daily surface reproducibility was estimated by comparing camera-acquired surface references (VRT surface) at each fraction to the external surface of the planning CT (DICOM surface) and to the VRT surface from the previous fraction.
resultsThe reduction in all initial-to-treatment translation/rotation differences when using SG-SBRT was statistically significant (Rank-Sum test, α = 0.05). Orthogonal kV imaging kept CBCT shifts below reimaging thresholds in 19%/51% of fractions for SG-SBRT/non-SG-SBRT cohorts. Differences in average number of CBCTs acquired were not statistically significant. The reference surface study found no statistically significant differences between the use of DICOM or VRT surfaces.
conclusionsSG-SBRT improved pre-imaging treatment setup compared to in-room laser localization alone. It decreased the necessity of orthogonal kV imaging prior to CBCT but did not affect the average number of CBCTs acquired for setup. The selection of reference surface did not have a significant impact on initial patient positioning.
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