ArticleJournal of applied clinical medical physics2020
Surface-guided tomotherapy improves positioning and reduces treatment time: A retrospective analysis of 16 835 treatment fractions.
Article in Journal of applied clinical medical physics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Development and evaluation of a novel water-based pigment marker for radiation therapy skin marking.Radiological physics and technology · 2023Trial
- Enhancing inter-fraction set-up accuracy and margin minimization (E-SAMM): a comparison of maskless surface-guided and mask-based laser alignment positioning in pelvic radiotherapy.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026Article
- Multiregional assessment of surface guidance for patient positioning in radiotherapy.Technical innovations & patient support in radiation oncology · 2026Article
- Impact of surface-guided prepositioning and respiratory coaching on the target localization accuracy in lung stereotactic body radiation therapy.Radiological physics and technology · 2026Article
- Commissioning of LUNA three-dimensional surface-guided radiotherapy in full rotating gantry proton therapy system.International journal of particle therapy · 2026Article
- 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
- Surface guided ring gantry radiotherapy in deep inspiration breath hold for breast cancer patients.Journal of applied clinical medical physics · 2024Article
- Surface guided radiotherapy practice in paediatric oncology: a survey on behalf of the SIOPE Radiation Oncology Working Group.The British journal of radiology · 2024Article
- Considerations for intensity modulated total body or total marrow and lymphoid irradiation.Clinical and translational radiation oncology · 2023Article
- Setup accuracy and margins for surface-guided radiotherapy (SGRT) of head, thorax, abdomen, and pelvic target volumes.Scientific reports · 2023Article
- Application of surface-guided radiation therapy in prostate cancer: comparative analysis of differences with skin marking-guided patient setup.Radiation oncology journal · 2023Article
- Development of a new coordinate calibration phantom for a light-section-based optical surface monitoring system.Radiological physics and technology · 2023Article
- Verification of patient-setup accuracy using a surface imaging system with steep measurement angle.Journal of applied clinical medical physics · 2023Article
- Advances and potential of optical surface imaging in radiotherapy.Physics in medicine and biology · 2022Review
- 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
- Introduction to: Surface Guided Radiotherapy (SGRT).Technical innovations & patient support in radiation oncology · 2022Article
- Surface guided radiation therapy: An international survey on current clinical practice.Technical innovations & patient support in radiation oncology · 2022Article
- Surface-guided radiotherapy for lung cancer can reduce the number of close patient contacts without compromising initial setup accuracy.Technical innovations & patient support in radiation oncology · 2021Article
- Faster and more accurate patient positioning with surface guided radiotherapy for ultra-hypofractionated prostate cancer patients.Technical innovations & patient support in radiation oncology · 2021Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeIn this study, we have quantified the setup deviation and time gain when using fast surface scanning for daily setup/positioning with weekly megavoltage computed tomography (MVCT) and compared it to daily MVCT.
methodsA total of 16 835 treatment fractions were analyzed, treated, and positioned using our TomoTherapy HD (Accuray Inc., Madison, USA) installed with a Sentinel optical surface scanning system (C-RAD Positioning AB, Uppsala, Sweden). Patients were positioned using in-room lasers, surface scanning and MVCT for the first three fractions. For the remaining fractions, in-room laser was used for setup followed by daily surface scanning with MVCT once weekly. The three-dimensional (3D) setup correction for surface scanning was evaluated from the registration between MVCT and the planning CT. The setup correction vector for the in-room lasers was assessed from the surface scanning and the MVCT to planning CT registration. The imaging time was evaluated as the time from imaging start to beam-on.
resultsWe analyzed 894 TomoTherapy treatment plans from 2012 to 2018. Of all the treatment fractions performed with surface scanning, 90 % of the residual errors were within 2.3 mm for CNS (N = 284), 2.9 mm for H&N (N = 254), 8.7 mm for thorax (N = 144) and 10.9 for abdomen (N = 134) patients. The difference in residual error between surface scanning and positioning with in-room lasers was significant (P < 0.005) for all sites. The imaging time was assessed as total imaging time per treatment plan, modality, and treatment site and found that surface scanning significantly reduced patient on-couch time compared to MVCT for all treatment sites (P < 0.005).
conclusionsThe results indicate that daily surface scanning with weekly MVCT can be used with the current target margins for H&N, CNS, and thorax, with reduced imaging time.
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