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    Impact of peer review in reducing uncertainty in the definition of the lung target volume among trainee oncologists

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    Authors
    Mercieca, S
    Pan, Shermaine
    Belderbos, J
    Salem, Ahmed
    Tenant, Sean
    Aznar, Marianne Camille
    Woolf, D
    Radhakrishna, Ganesh
    van Herk, Marcel
    Affiliation
    Faculty of Health Science, University of Malta, Msida, Malta
    Issue Date
    2020
    
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    Abstract
    AIMS: To evaluate the impact of peer review and contouring workshops on reducing uncertainty in target volume delineation for lung cancer radiotherapy. MATERIALS AND METHODS: Data from two lung cancer target volume delineation courses were analysed. In total, 22 trainees in clinical oncology working across different UK centres attended these courses with priori experience in lung cancer radiotherapy. The courses were made up of short presentations and contouring practice sessions. The participants were divided into two groups and asked to first individually delineate (IND) and then individually peer review (IPR) the contours of another participant. The contours were discussed with an expert panel consisting of two consultant clinical oncologists and a consultant radiologist. Contours were analysed quantitatively by measuring the volume and local distance standard deviation (localSD) from the reference expert consensus contour and qualitatively through visual analysis. Feedback from the participants was obtained using a questionnaire. RESULTS: All participants applied minor editing to the contours during IPR, leading to a non-statistically significant reduction in the mean delineated volume (IND = 140.92 cm3, IPR = 125.26 cm3, P = 0.211). The overall interobserver variation was similar, with a localSD of 0.33 cm and 0.38 cm for the IND and IPR, respectively (P = 0.848). Six participants (29%) carried out correct major changes by either including tumour or excluding healthy tissue. One participant (5%) carried out an incorrect edit by excluding parts of the tumour, while another observer failed to identify a major contour error. The participants' level of confidence in target volume delineation increased following the course and identified the discussions with the radiologist and colleagues as the most important highlights of the course. CONCLUSION: IPR could improve target volume delineation quality among trainee oncologists by identifying most major contour errors. However, errors were also introduced after IPR, suggesting the need to further discuss major changes with a multidisciplinary team.
    Citation
    Meijer BJ, Giugliano FP, Baan B, van der Meer JHM, Meisner S, van Roest M, et al. ATF2 and ATF7 Are Critical Mediators of Intestinal Epithelial Repair. Cell Mol Gastroenterol Hepatol. 2020;37(1):103.
    Journal
    Clinical Oncology
    URI
    http://hdl.handle.net/10541/622793
    DOI
    10.1016/j.clon.2020.01.026
    PubMed ID
    32033892
    Additional Links
    https://dx.doi.org/10.1016/j.clon.2020.01.026
    Type
    Article
    Language
    en
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.clon.2020.01.026
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