@misc{oai:repo.qst.go.jp:00064986,
 author = {Tashima, Hideaki and Yoshida, Eiji and Shinaji, Tetsuya and Hirano, Yoshiyuki and Nishikido, Fumihiko and Haneishi, Hideaki and Ito, Hiroshi and Yamaya, Taiga and 田島 英朗 and 吉田 英治 and 品地 哲弥 and 平野 祥之 and 錦戸 文彦 and 羽石 秀昭 and 伊藤 浩 and 山谷 泰賀},
 month = {Apr},
 note = {We are developing OpenPET which can provide an open space observable and accessible to the patient during PET studies. In addition, we have proposed real-time imaging system for the OpenPET which is expected to be used in PET-guided tumor tracking radiation therapy. The tracking ability of the system has been demonstrated using a point source and a small OpenPET prototype. However, tumor tracking in human body still remains as a challenging task when we use PET tracer for tumors because the number of counts in short time frame is small and noises from background activity, scatter and attenuation are unavoidable. In this study, we assess conditions under which tumor tracking is feasible in the human body by using the 4D XCAT phantom which is a realistic 4D human whole body phantom. We conducted Monte Carlo simulation of a human-sized OpenPET geometry by using GATE toolkit assigning typical SUVs in 18F-FDG study to normal organs based on the literature. As a result, we showed that tumor tracking by the OpenPET is feasible even in the human body scale and for realistic conditions when the tumor contains enough radioactivity., 2nd SNU-NIRS workshop on nuclear medicine imaging science and technology},
 title = {Monte Carlo simulation of real-time tumor tracking by the OpenPET using the 4D XCAT phantom with a realistic 18F-FDG distribution},
 year = {2013}
}