ArticleStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2013
Dosimetric properties and commissioning of cone-beam CT image beam line with a carbon target.
Article in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Positioning errors of metal localization devices with motion artifacts on kV and MV cone beam CT.BJR open · 2019Article
- Comparison between manual and automatic image registration in image-guided radiation therapy using megavoltage cone-beam computed tomography with an imaging beam line for prostate cancer.Radiological physics and technology · 2018Article
- Image guidance and positioning accuracy in clinical practice: influence of positioning errors and imaging dose on the real dose distribution for head and neck cancer treatment.Radiation oncology (London, England) · 2018Article
- Imaging dose and secondary cancer risk in image-guided radiotherapy of pediatric patients.Radiation oncology (London, England) · 2018Article
- Patient specific methods for room-mounted x-ray imagers for monoscopic/stereoscopic prostate motion monitoring.Journal of applied clinical medical physics · 2017Article
- Influence of daily imaging on plan quality and normal tissue toxicity for prostate cancer radiotherapy.Radiation oncology (London, England) · 2017Article
- Image quality and dose distributions of three linac-based imaging modalities.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2015Article
- Hounsfield units variations: impact on CT-density based conversion tables and their effects on dose distribution.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2014Article
- Evaluation of IGRT-Induced Imaging Doses and Secondary Cancer Risk for SBRT Early Lung Cancer Patients In Silico Study.Technology in cancer research & treatmentArticle
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeAccurate patient positioning before radiotherapy is often verified using advanced imaging techniques such as cone-beam computed tomography (CBCT). Even for dedicated imaging beam lines, the applied dose is not necessarily negligible with respect to the treatment dose and should be considered in the treatment plan. MATERIALS AND
methodsThis study presents measurements of the beam properties of the Siemens kView (Siemens AG, Munich, Germany) image beam line (IBL) and the commissioning in the Philips Pinnacle(3) treatment planning system (TPS; Philips, Amsterdam, Netherlands).
resultsThe percent depth dose curve reaches its maximum at a depth of 10 mm, with a surface dose of 44 %. The IBL operates in flattening filter-free mode, showing the characteristic dose falloff from the central axis. Stability over several days to months is within less than 2 % dose deviation or 1 mm distance-to-agreement. Modelling of the IBL beam line was performed using the Pinnacle(3) automatic modelling routine, with absolute dosimetric verification and film measurements of the fluence distribution.
conclusionAfter commissioning of the IBL beam model, the dose from the imaging IBL CBCT can be calculated. Even if the absolute dose deposited is small, repeated imaging doses may sum up to significant amounts and can shift the position of the dose maximum by several centimetres.
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