ArticleStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2014
Prostate positioning using cone-beam computer tomography based on manual soft-tissue registration: interobserver agreement between radiation oncologists and therapists.
Article in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 21 citations in OpenAlex.
- In vivo measurement of dose distribution in patients' lymphocytes: helical tomotherapy versus step-and-shoot IMRT in prostate cancer.Journal of radiation research · 2015Trial
- Evaluating the impact of possible interobserver variability in CBCT-based soft-tissue matching using TCP/NTCP models for prostate cancer radiotherapy.Radiation oncology (London, England) · 2022Article
- Evaluation of the XVI dual registration tool for image-guided radiotherapy in prostate cancer.Technical innovations & patient support in radiation oncology · 2021Article
- Semi-automated prediction approach of target shifts using machine learning with anatomical features between planning and pretreatment CT images in prostate radiotherapy.Journal of radiation research · 2020Article
- Observer uncertainties of soft tissue-based patient positioning in IGRT.Journal of applied clinical medical physics · 2020Article
- The emerging role of radiation therapists in the contouring of organs at risk in radiotherapy: analysis of inter-observer variability with radiation oncologists for the chest and upper abdomen.Ecancermedicalscience · 2020Article
- RTT-led IGRT for cervix cancer; training, implementation and validation.Technical innovations & patient support in radiation oncology · 2019Article
- The clinical introduction of MR-guided radiation therapy from a RTT perspective.Clinical and translational radiation oncology · 2019Review
- Hydrogel injection reduces rectal toxicity after radiotherapy for localized prostate cancer.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2017Article
- Effect of dose reduction on image registration and image quality for cone-beam CT in radiotherapy.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2015Article
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo check the interobserver agreement between radiation oncologists and therapists (RTT) using an on- and off-line cone-beam computer tomography (CBCT) protocol for setup verification in the radiotherapy of prostate cancer. MATERIALS AND
methodsThe CBCT data from six prostate cancer patients treated with hypofractionated intensity-modulated radiotherapy (IMRT) were independently reviewed off-line by four observers (one radiation oncologist, one junior and two senior RTTs) and benchmarked with on-line CBCT positioning performed by a radiation oncologist immediately prior to treatment. CBCT positioning was based on manual soft-tissue registration. Agreement between observers was evaluated using weighted Cohen's kappa statistics.
resultsIn total, 152 CBCT-based prostate positioning procedures were reviewed by each observer. The mean (± standard deviation) of the differences between off- and on-line CBCT-simCT registration translations along the three directions (antero-posterior, latero-lateral and cranio-caudal) and rotation around the antero-posterior axis were -0.7 (3.6) mm, 1.9 (2.7) mm, 0.9 (3.6) mm and -1.8 (5.0) degrees, respectively. Satisfactory interobserver agreement was found, being substantial (weighted kappa >0.6) in 10 of 16 comparisons and moderate (0.41-0.60) in the remaining six comparisons.
conclusionsCBCT interpretation performed by RTTs is comparable to that of radiation oncologists. Our study might be helpful in the quality assurance of radiotherapy and the optimization of competencies. Further investigation should include larger sample sizes, a greater number of observers and validated methodology in order to assess interobserver variability and its impact on high-precision prostate cancer IGRT. In the future, it should enable the wider implementation of complex and evolving radiotherapy technologies.
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