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Báo cáo khoa học: "Conformal radiotherapy for lung cancer: interobservers' variability in the definition of gross tumor volume between radiologists and radiotherapists"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Radiation Oncology cung cấp cho các bạn kiến thức về ngành y đề tài: "Conformal radiotherapy for lung cancer: interobservers' variability in the definition of gross tumor volume between radiologists and radiotherapists. | Radiation Oncology BioMed Central Research Conformal radiotherapy for lung cancer interobservers variability in the definition of gross tumor volume between radiologists and radiotherapists Chiang J Tyng 1 Rubens Chojniak1 Paula NV Pinto1 Marcelle A Borba1 Almir GV Bitencourt1 Ricardo C Fogaroli2 Douglas G Castro2 and Paulo E Novaes2 Open Access Address Department of Diagnostic Imaging Hospital A C Camargo Rua Prof. Antônio Prudente 211 São Paulo SP Brazil and 2Department of Radiotheraphy Hospital A C Camargo Rua Prof. Antônio Prudente 211 São Paulo SP Brazil Email Chiang J Tyng - chiangjengtyng@uol.com.br Rubens Chojniak - chojniak@uol.com.br Paula NV Pinto - nicolebarbosa@terra.com.br Marcelle A Borba - marcelle.alvesborba@gmail.com Almir GV Bitencourt - almirgvb@yahoo.com.br Ricardo C Fogaroli - rcfogaroli@terra.com.br Douglas G Castro - dougguedes@uol.com.br Paulo E Novaes - novaespe@uol.com.br Corresponding author Published 5 August 2009 Received 4 April 2009 Radiation Oncology 2009 4 28 doi 10.1186 174 -717X-4-28 Accepted 5 August 2009 This article is available from http www.ro-journal.cOm content 4 1 28 2009 Tyng et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Conformal external radiotherapy aims to improve tumor control by boosting tumor dose reducing morbidity and sparing healthy tissues. To meet this objective careful visualization of the tumor and adjacent areas is required. However one of the major issues to be solved in this context is the volumetric definition of the targets. This study proposes to compare the gross volume of lung tumors as delineated by specialized radiologists and radiotherapists of a cancer center. Methods Chest CT scans of a total of 23 patients all with non-small