@article{oai:repo.qst.go.jp:00055374, author = {吉川, 京燦 and 金澤, 光隆 and 富谷, 武浩 and 佐合, 賢治 and 石川, 博之 and 田村, 克巳 and 神立, 進 and 山田, 滋 and 加藤, 博敏 and 辻, 比呂志 and 馬場, 雅行 and 宮本, 忠昭 and 鎌田, 正 and 溝江, 純悦 and 辻井, 博彦 and 吉川 京燦 and 金澤 光隆 and 富谷 武浩 and 佐合 賢治 and 石川 博之 and 田村 克巳 and 神立 進 and 山田 滋 and 加藤 博敏 and 辻 比呂志 and 馬場 雅行 and 宮本 忠昭 and 鎌田 正 and 溝江 純悦 and 辻井 博彦}, journal = {放射線医学総合研究所重粒子線がん治療装置等共同利用研究報告書}, month = {May}, note = {Combined PET-CT scanner that simultaneously reveals both PET and CT images within the body can indicate accurate fusion image of PET and CT image. We intended to measure the auto activation acitivity using PET-CT for the purpose of evaluating the accuracy of a superimpose method which we developed to desplay fusion image of the auto activation image of dedicated PET and CT planning image for HIMAC therapy. Malignant melanoma of the orbit, maxillary sinus cancer, lung cancer, pancreas cancer, recurrencr of rectal cancer, bone and soft tissue cancer, and prostate cancer were studied using PET-CT immediately after C-12 ion beam irradiation. Dedicated PET measurement was also done at another day for comparison fusion accuracy with each other. 71.4% of our cases showed good correspondence between PET-CT and dedicated PET fusion images. The orbital tumor showed some difference of each other, because FOV of planning CT for the orbital tumor was so narrow that the fitting algorithm tended to cause some errors. The maxillary sinus cancer showed also some difference between PET-CT and dedicated PET fusion images. Head position of the case at PET-CT measurement differed from that of planning CT, and the fusion images of the two studies differed each other. For clinical purpose, it seems to be better to evaluate the auto acitivity distribution that fused on planning CT. But, PET-CT measurement is very simple and easy to get fusion images.}, pages = {41--42}, title = {CT付PET装置による自己放射化画像の検討}, year = {2004} }