ArticleStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2016
Iterative metal artifact reduction improves dose calculation accuracy : Phantom study with dental implants.
Article in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The application of metal artifact reduction methods on computed tomography scans for radiotherapy applications: A literature review.Journal of applied clinical medical physics · 2021Pooled it
- Advanced Iterative Metal Artifact Reduction With Intrinsic Spectral Information From Photon-counting Detector Computed Tomography: Improving the Assessment of Metal-bone Interface.Investigative radiology · 2026Article
- Dosimetric Impact and Correction of Lipiodol Deposition on Photon-Beam Radiotherapy for Hepatocellular Carcinoma Using a Novel Simulation Model.Journal of hepatocellular carcinoma · 2026Article
- Deep learning-based ultrasound transducer induced CT metal artifact reduction using generative adversarial networks for ultrasound-guided cardiac radioablation.Physical and engineering sciences in medicine · 2023Article
- Metal implants on abdominal CT: does split-filter dual-energy CT provide additional value over iterative metal artifact reduction?Abdominal radiology (New York) · 2023Article
- Combined clustered scan-based metal artifact reduction algorithm (CCS-MAR) for ultrasound-guided cardiac radioablation.Physical and engineering sciences in medicine · 2022Article
- Effect of dental metal artifact conversion volume on dose distribution in head-and-neck volumetric-modulated arc therapy.Journal of applied clinical medical physics · 2020Article
- Iterative algorithms for metal artifact reduction in children with orthopedic prostheses: preliminary results.Pediatric radiology · 2018Article
- Feasibility of optimizing intensity-modulated radiation therapy plans based on measured mucosal dose adjacent to dental fillings and toxicity outcomes.Journal of applied clinical medical physics · 2018Article
- Improvement of dose calculation in radiation therapy due to metal artifact correction using the augmented likelihood image reconstruction.Journal of applied clinical medical physics · 2018Article
- Metal artefact reduction for accurate tumour delineation in radiotherapy.Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology · 2018Article
- Dosimetric impact of tumor treating field (TTField) transducer arrays onto treatment plans for glioblastomas - a planning study.Radiation oncology (London, England) · 2018Article
- [Metal artifact reduction for dental implants in kilovoltage computed tomography using megavoltage cone-beam computer tomography].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2017Article
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
purposeMetallic dental implants cause severe streaking artifacts in computed tomography (CT) data, which affect the accuracy of dose calculations in radiation therapy. The aim of this study was to investigate the benefit of the metal artifact reduction algorithm iterative metal artifact reduction (iMAR) in terms of correct representation of Hounsfield units (HU) and dose calculation accuracy. MATERIALS AND
methodsHeterogeneous phantoms consisting of different types of tissue equivalent material surrounding metallic dental implants were designed. Artifact-containing CT data of the phantoms were corrected using iMAR. Corrected and uncorrected CT data were compared to synthetic CT data to evaluate accuracy of HU reproduction. Intensity-modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) plans were calculated in Oncentra v4.3 on corrected and uncorrected CT data and compared to Gafchromic™ EBT3 films to assess accuracy of dose calculation.
resultsThe use of iMAR increased the accuracy of HU reproduction. The average deviation of HU decreased from 1006 HU to 408 HU in areas including metal and from 283 HU to 33 HU in tissue areas excluding metal. Dose calculation accuracy could be significantly improved for all phantoms and plans: The mean passing rate for gamma evaluation with 3 % dose tolerance and 3 mm distance to agreement increased from 90.6 % to 96.2 % if artifacts were corrected by iMAR.
conclusionThe application of iMAR allows metal artifacts to be removed to a great extent which leads to a significant increase in dose calculation accuracy.
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