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METHODS AND MATERIALS: This retrospective study analyzed 16 patients with malignant glioma (4 patients, anaplastic astrocytoma; 12 patients, glioblastoma multiforme) treated with surgery and carbon ion radiotherapy from April 2002 to Nov 2005. The MET-PET target volume was compared with gross tumor volume and CTV, defined by using computed tomography/magnetic resonance imaging (MRI). Correlations with treatment results were evaluated between positive and negative extended volumes (EVs) of the MET-PET target for CTV. RESULTS: Mean volumes of the MET-PET targets, CTV1 (defined by means of high-intensity volume on T2-weighted MRI), and CTV2 (defined by means of contrast-enhancement volume on T1-weighted MRI) were 6.35, 264.7, and 117.7 cm(3), respectively. Mean EVs of MET-PET targets for CTV1 and CTV2 were 0.6 and 2.2 cm(3), respectively. The MET-PET target volumes were included in CTV1 and CTV2 in 13 (81.3%) and 11 patients (68.8%), respectively. 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L-[methyl-11C] Methionine positron emission tomography for target delineation in malignant gliomas: impact on results of carbon ion radiotherapy.
https://repo.qst.go.jp/records/45094
https://repo.qst.go.jp/records/4509420339ad4-96ba-493f-a433-29f394d52d71
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-02-14 | |||||
タイトル | ||||||
タイトル | L-[methyl-11C] Methionine positron emission tomography for target delineation in malignant gliomas: impact on results of carbon ion radiotherapy. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Mahasittiwat, Pawinee
× Mahasittiwat, Pawinee× Mizoe, Junetsu× Hasegawa, Azusa× Ishikawa, Hiroyuki× Yoshikawa, Kyosan× Mizuno, Hideyuki× Yanagi, Takeshi× Takagi, Ryo× Pattaranutaporn, Pittyapoom× Tsujii, Hirohiko× 溝江 純悦× 長谷川 安都佐× 石川 博之× 吉川 京燦× 水野 秀之× 柳 剛× 高木 亮× 辻井 博彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | PURPOSE: To assess the importance of (11)C-methionine (MET)-positron emission tomography (PET) for clinical target volume (CTV) delineation. METHODS AND MATERIALS: This retrospective study analyzed 16 patients with malignant glioma (4 patients, anaplastic astrocytoma; 12 patients, glioblastoma multiforme) treated with surgery and carbon ion radiotherapy from April 2002 to Nov 2005. The MET-PET target volume was compared with gross tumor volume and CTV, defined by using computed tomography/magnetic resonance imaging (MRI). Correlations with treatment results were evaluated between positive and negative extended volumes (EVs) of the MET-PET target for CTV. RESULTS: Mean volumes of the MET-PET targets, CTV1 (defined by means of high-intensity volume on T2-weighted MRI), and CTV2 (defined by means of contrast-enhancement volume on T1-weighted MRI) were 6.35, 264.7, and 117.7 cm(3), respectively. Mean EVs of MET-PET targets for CTV1 and CTV2 were 0.6 and 2.2 cm(3), respectively. The MET-PET target volumes were included in CTV1 and CTV2 in 13 (81.3%) and 11 patients (68.8%), respectively. Patients with a negative EV for CTV1 had significantly greater survival rate (p = 0.0069), regional control (p = 0.0047), and distant control time (p = 0.0267) than those with a positive EV. Distant control time also was better in patients with a negative EV for CTV2 than those with a positive EV (p = 0.0401). CONCLUSIONS: For patients with malignant gliomas, MET-PET has a possibility to be a predictor of outcome in carbon ion radiotherapy. Direct use of MET-PET fused to planning computed tomography will be useful and yield favorable results for the therapy. | |||||
書誌情報 |
International Journal of Radiation Oncology Biology Physics 巻 70, 号 2, p. 515-522, 発行日 2007-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0360-3016 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.ijrobp.2007.06.071 |