@inproceedings{oai:repo.qst.go.jp:00054412, author = {Yamamoto, Naoyoshi and Horino, Takeshi and Baba, Masayuki and 山本 直敬 and 堀野 武 and 馬場 雅行}, book = {Proceedings of 10th Heavy Ion Charged Particle Therapy Symposium : International Symposium on Heavy Ion Radiotherapy and Advanced Technology, January 12-13, 2011 (Wed-Thu)}, month = {Jan}, note = {Although stage I non-small cell lung cancer can often be cured by surgical resection, in some cases, surgery cannot be performed or is refused by the patient. There is a critical need to develop safe and effective treatments to reduce the mortality of lung cancer in such patients. Carbon ion radiotherapy for lung cancer was first performed in Novenber of 2009, and 918patients have been treated as of December 2010. For peripheral type stage Ilung cancer, the treatment period was gradually shortened from 6 weeks(18fractions)to 3 weeks(9 fractions)to 1week(4 fractions)to determine the safety and efficacy of the treatment. Aclinical trial examining the treatment of patients in a single day is just ending. In the phase II clinical trial, the adverse effect on normal tissue was 91.8% in a five years local control rate, not showing a pulmonary response grade of 3 or more, which indicates clinically problematic cases. It appears that carbon ion radiotherapy contributes to the reduction of lung cancer mortality, and may reprsent a valid alternative local therapy for inoperable cases.}, pages = {22--25}, publisher = {National Institute of Radiological Sciences}, title = {Carbon Ion Radiotherapy for Lung Cancer}, year = {2011} }