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Title: Multicentre dose audit for clinical trials of radiation therapy in Asia
Authors: Hideyuki Mizuno
Shigekazu Fukuda
Akifumi Fukumura
Yuzuru Kutsutani Nakamura
Cao Jianping
Chul Koo Cho
Nana Supriana
To Anh Dung
Miriam Joy Calaguas
C. R.Beena Devi
Yaowalak Chansilpa
Parvin Akhter Banu
Masooma Riaz
Surya Esentayeva
Shingo Kato
Kumiko Karasawa
Hirohiko Tsujii
National Institute of Radiological Sciences Chiba
Soochow University
Korea Institute of Radiological and Medical Sciences
University of Indonesia, RSUPN Dr. Cipto Mangunkusumo
National Cancer Hospital
St. Luke's Medical Center Quezon City
Sarawak General Hospital
Mahidol University
Delta Hospital Ltd
Institute of Nuclear Medicine and Oncology
Kazakh Research Institute of Oncology and Radiology
Saitama Medical University
Tokyo Women's Medical University Hospital
Keywords: Environmental Science
Issue Date: 1-May-2017
Citation: Journal of Radiation Research. Vol.58, No.3 (2017), 372-377
Abstract: © The Author 2016. Published by Oxford University Press on behalf of The Japan Radiation Research Society and Japanese Society for Radiation Oncology. A dose audit of 16 facilities in 11 countries has been performed within the framework of the Forum for Nuclear Cooperation in Asia (FNCA) quality assurance program. The quality of radiation dosimetry varies because of the large variation in radiation therapy among the participating countries. One of the most important aspects of international multicentre clinical trials is uniformity of absolute dose between centres. The National Institute of Radiological Sciences (NIRS) in Japan has conducted a dose audit of participating countries since 2006 by using radiophotoluminescent glass dosimeters (RGDs). RGDs have been successfully applied to a domestic postal dose audit in Japan. The authors used the same audit system to perform a dose audit of the FNCA countries. The average and standard deviation of the relative deviation between the measured and intended dose among 46 beams was 0.4% and 1.5% (k = 1), respectively. This is an excellent level of uniformity for the multicountry data. However, of the 46 beams measured, a single beam exceeded the permitted tolerance level of ±5%. We investigated the cause for this and solved the problem. This event highlights the importance of external audits in radiation therapy.
ISSN: 13499157
Appears in Collections:Scopus 2016-2017

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