ArticleJournal of applied clinical medical physics2023
Evaluation of a planar diode matrix for SRS patient-specific QA in comparison with GAFchromic films.
Article in Journal of applied clinical medical physics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Clinical assessment of dedicated SRS detector for dose verification in SBRT/SRS treatment plans: to establish clinical threshold with AAPM TG-218 recommendation.Irish journal of medical science · 2026Article
- Multi-institutional study of multileaf collimator parameters and dose calculation accuracy using the enhanced leaf model.Radiological physics and technology · 2026Article
- Efficacy and clinical use of novel high-resolution EPID-based 2D and 3D automated patient-specific quality assurance for SRS and SBRT patients.Radiation and environmental biophysics · 2026Article
- Quality and Dosimetric Accuracy of Linac-Based Single-Isocenter Treatment Plans for Four to Eighteen Brain Metastases.Cancers · 2025Article
- Validation of SRS MapCHECK for CyberKnife patient-specific quality assurance: challenges with small cone sizes.Frontiers in oncology · 2025Article
- Evaluation of a novel patient-specific quality assurance phantom for robotic single-isocentre, multiple-target stereotactic radiosurgery, and stereotactic radiotherapy.The British journal of radiology · 2024Article
- Evaluation of a planar diode matrix for SRS patient-specific QA in comparison with GAFchromic films.Journal of applied clinical medical physics · 2023Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeWe validate the routine use of a two-dimensional (2D) diode matrix for patient specific pre-treatment verification for Cyberknife (CK) stereotactic radiosurgery and to compare it with film dosimetry. MATERIALS AND
methodA total of 46 patients were selected according to the most frequent diseases treated at our institution with the CK system, that is, brain metastases, meningiomas, spine metastases, and prostate tumors. All cases were evaluated with GAFChromic EBT-3 films and SRS MapCHECK for Fixed cone, IRIS, and MLC collimators of the CK.
resultsThe highest mean passing rate was observed for the SRS MapCHECK system compared to films. In order to assess if the two techniques provide statistically different results, a Wilcoxon Signed-Rank non-parametric test was performed (p < 0.05) and we found gamma values significantly lower for EBT-3 films with respect to the SRS MapCHECK. We noticed a moderately significant association between the two techniques using Spearman's rank correlation coefficient (rs > 0.4). We also performed the Bland-Altman statistical method: less than 5% of the differences resulted outside the range (mean ± 1.96 × SD), so the two methods can be considered interchangeable within the combined inaccuracy.
conclusionsThe use of SRS MapCHECK for CK patient specific quality assurance (QA) is feasible for a variety of clinical districts and could be reliably used as a replacement for radiochromic films.
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