ArticleRadiation oncology (London, England)2024
Dosimetric evaluation of LINAC-based single-isocenter multi-target multi-fraction stereotactic radiosurgery with more than 20 targets: comparing MME, HyperArc, and RapidArc.
Article in Radiation oncology (London, England), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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15 citing papers in PubMed, 15 citations in OpenAlex.
- Feasibility of lattice radiation therapy using a noncoplanar vertex arrangement and dynamic conformal arcs.Journal of applied clinical medical physics · 2026Article
- Evaluation of EPID-Based Transmission and DLG Correction Methods for Dosimetric Verification in HyperArc Single-Isocenter Multiple Target Radiosurgery.Diagnostics (Basel, Switzerland) · 2026Article
- Effects of intrafractional motion on targeting accuracy in frameless single-isocenter multi-target stereotactic radiosurgery.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2026Article
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- Dual optimization in single-isocenter radiosurgery for multiple brain metastases: a dosimetric planning study.Frontiers in oncology · 2026Article
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- Stratified dosimetric comparison between high-definition multileaf collimator-based D2SRS and robotic radiosurgery in the treatment of brain metastases.Journal of applied clinical medical physics · 2025Article
- 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
- HyperArc Automated Stereotactic Radiosurgery Planning Enables Accurate a Priori Fractionation Scheme Selection via Adherence to HyTEC Toxicity Thresholds.Advances in radiation oncology · 2025Article
- Evaluation of the efficacy and safety of HyperArc stereotactic radiotherapy for the treatment of lung cancer brain metastasis.Medical oncology (Northwood, London, England) · 2025Article
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- New Approaches in Radiotherapy.Cancers · 2025Review
- Assessing tumor volumetric reduction with consideration for setup errors based on mathematical tumor model and microdosimetric kinetic model in single-isocenter VMAT for brain metastases.Physical and engineering sciences in medicine · 2024Article
- Effects of Institutional Experience on Plan Quality in Stereotactic Radiotherapy Using HyperArc for Brain Metastases.In vivo (Athens, Greece)Article
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Authors and funding
9 authors at 1 institution in 1 country.
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Abstract
backgroundTo compare the dosimetric quality of three widely used techniques for LINAC-based single-isocenter multi-target multi-fraction stereotactic radiosurgery (fSRS) with more than 20 targets: dynamic conformal arc (DCA) in BrainLAB Multiple Metastases Elements (MME) module and volumetric modulated arc therapy (VMAT) using RapidArc (RA) and HyperArc (HA) in Varian Eclipse.
methodsTen patients who received single-isocenter fSRS with 20-37 targets were retrospectively replanned using MME, RA, and HA. Various dosimetric parameters, such as conformity index (CI), Paddick CI, gradient index (GI), normal brain dose exposures, maximum organ-at-risk (OAR) doses, and beam-on times were extracted and compared among the three techniques. Wilcoxon signed-rank test was used for statistical analysis.
resultsAll plans achieved the prescribed dose coverage goal of at least 95% of the planning target volume (PTV). HA plans showed superior conformity compared to RA and MME plans. MME plans showed superior GI compared to RA and HA plans. RA plans resulted in significantly higher low and intermediate dose exposure to normal brain compared to HA and MME plans, especially for lower doses of ≥ 8Gy and ≥ 5Gy. No significant differences were observed in the maximum dose to OARs among the three techniques. The beam-on time of MME plans was about two times longer than RA and HA plans.
conclusionsHA plans achieved the best conformity, while MME plans achieved the best dose fall-off for LINAC-based single-isocenter multi-target multi-fraction SRS with more than 20 targets. The choice of the optimal technique should consider the trade-offs between dosimetric quality, beam-on time, and planning effort.
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