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(CRT 40 Gy) for 12 patients with postoperative local recurrent rectal cancer, and then we performed FDG-PET/CT radiotherapy planning for those patients. We defined the regions with SUV \u003e 2.0 as biological target volume (BTV) and made three boost plans for each patient: 1) CRT boost plan, 2) IMRT without dose-painting boost plan, and 3) IMRT with dose-painting boost plan. The total boost dose was 20 Gy. In IMRT with dose-painting boost plan, we increased the dose for BTV+5 mm by 30% of the prescribed dose. We added CRT boost plan to CRT 40 Gy (summed plan 1), IMRT without dose-painting boost plan to CRT 40 Gy (summed plan 2) and IMRT with dose-painting boost plan to CRT 40 Gy (summed plan 3), and we compared those plans using DVHs and NTCP.\n\\nResults\nDmean of PTV-PET and that of PTV-CT were 26.5 Gy and 21.3 Gy, respectively. V50 of small bowel PRV in summed plan 1 was significantly higher than those in other plans ((summed plan 1 vs. summed plan 2 vs. summed plan 3: 47.11 +/- 45.33 cm3 vs. 40.63 +/- 39.13 cm3 vs. 41.25 +/- 39.96 cm3(p \u003c 0.01, respectively)). There were no significant differences in V30, V40, V60, Dmean or NTCP of small bowel PRV.\n\\nConclusions\nFDG-PET-guided IMRT can facilitate focal dose-escalation to regions with SUV above 2.0 for postoperative local recurrent rectal cancer.", "subitem_description_type": "Abstract"}]}, "item_8_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1186/1471-2407-10-127", "subitem_relation_type_select": "DOI"}}]}, "item_8_relation_17": {"attribute_name": "関連サイト", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "http://www.biomedcentral.com/1471-2407/10/127"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.biomedcentral.com/1471-2407/10/127", "subitem_relation_type_select": "URI"}}]}, "item_8_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1471-2407", "subitem_source_identifier_type": "ISSN"}]}, 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Focal dose escalation using FDG-PET-guided intensity-modulated radiation therapy boost for postoperative local recurrent rectal cancer: a planning study with comparison of DVH and NTCP
https://repo.qst.go.jp/records/45886
https://repo.qst.go.jp/records/45886e66f9361-2205-434c-9368-7dd076d47481
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-09-06 | |||||
タイトル | ||||||
タイトル | Focal dose escalation using FDG-PET-guided intensity-modulated radiation therapy boost for postoperative local recurrent rectal cancer: a planning study with comparison of DVH and NTCP | |||||
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 |
Jingu, Keiichi
× Jingu, Keiichi× Ariga, Hisanori× Kaneta, Tomohiro× Takai, Yoshihiro× Takeda, Ken× Narazaki, Kakutarou× Metoki, Takahiro× Fujimoto, Keisuke× Umezawa, Rei× Ogawa, Yoshihiro× Nemoto, Kenji× Koto, Masashi× Mitsuya, Masatoshi× Matsufuji, Naruhiro× Takahashi, Shoki× Yamada, Syougo× et.al× 神宮 啓一× 有賀 久哲× 高井 良尋× 武田 賢× 小川 芳弘× 根本 建二× 小藤 昌志× 松藤 成弘× 山田 章吾 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Background To evaluate the safety of focal dose escalation to regions with standardized uptake value (SUV) >2.0 using intensity-modulated radiation therapy (IMRT) by comparison of radiotherapy plans using dose-volume histograms (DVHs) and normal tissue complication probability (NTCP) for postoperative local recurrent rectal cancer \nMethods First, we performed conventional radiotherapy with 40 Gy/20 fr. (CRT 40 Gy) for 12 patients with postoperative local recurrent rectal cancer, and then we performed FDG-PET/CT radiotherapy planning for those patients. We defined the regions with SUV > 2.0 as biological target volume (BTV) and made three boost plans for each patient: 1) CRT boost plan, 2) IMRT without dose-painting boost plan, and 3) IMRT with dose-painting boost plan. The total boost dose was 20 Gy. In IMRT with dose-painting boost plan, we increased the dose for BTV+5 mm by 30% of the prescribed dose. We added CRT boost plan to CRT 40 Gy (summed plan 1), IMRT without dose-painting boost plan to CRT 40 Gy (summed plan 2) and IMRT with dose-painting boost plan to CRT 40 Gy (summed plan 3), and we compared those plans using DVHs and NTCP. \nResults Dmean of PTV-PET and that of PTV-CT were 26.5 Gy and 21.3 Gy, respectively. V50 of small bowel PRV in summed plan 1 was significantly higher than those in other plans ((summed plan 1 vs. summed plan 2 vs. summed plan 3: 47.11 +/- 45.33 cm3 vs. 40.63 +/- 39.13 cm3 vs. 41.25 +/- 39.96 cm3(p < 0.01, respectively)). There were no significant differences in V30, V40, V60, Dmean or NTCP of small bowel PRV. \nConclusions FDG-PET-guided IMRT can facilitate focal dose-escalation to regions with SUV above 2.0 for postoperative local recurrent rectal cancer. |
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書誌情報 |
BMC Cancer (Online only:URL:http://www.biomedcentral.com/bmccancer) 巻 10, 号 127, p. 127-1-127-10, 発行日 2010-04 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1471-2407 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1186/1471-2407-10-127 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.biomedcentral.com/1471-2407/10/127 | |||||
関連名称 | http://www.biomedcentral.com/1471-2407/10/127 |