@article{oai:repo.qst.go.jp:00048305,
 author = {水野, 秀之 and 福田, 茂一 and 福村, 明史 and Nakamura, Yuzuru-Kutsutani and Jianping, Cao and Cho, Chul-Koo and Supriana, Nana and Anh, Dung To and Joy, Calaguas Miriam and Beena, Devi C.R. and Chansilpa, Yaowalak and Akhter, Banu Parvin and Riaz, Masooma and Esentayeva, Surya and 加藤, 眞吾 and 唐澤, 久美子 and 辻井, 博彦 and 水野 秀之 and 福田 茂一 and 福村 明史 and 加藤 眞吾 and 唐澤 久美子 and 辻井 博彦},
 issue = {3},
 journal = {Journal of Radiation Research},
 month = {Nov},
 note = {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.},
 pages = {372--377},
 title = {Multicentre dose audit for clinical trials of radiation therapy in Asia},
 volume = {58},
 year = {2016}
}