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Dosimetric feasibility of computed tomography-based image-guided brachytherapy in locally advanced cervical cancer: a Japanese prospective multi-institutional study
https://repo.qst.go.jp/records/81794
https://repo.qst.go.jp/records/8179455762338-549d-41e5-aefe-cc7d5b3724e1
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-02-08 | |||||
タイトル | ||||||
タイトル | Dosimetric feasibility of computed tomography-based image-guided brachytherapy in locally advanced cervical cancer: a Japanese prospective multi-institutional study | |||||
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 |
Otani, Yuki
× Otani, Yuki× Tatsuya, Ohno× Ken, Ando× Kazutoshi, Murata× Shingo, Kato× Shin-ei, Noda× Murofushi, Keiko× Ushijima, Hiroki× Daisaku, Yoshida× Noriyuki, Okonogi× Isohashi, Fumiaki× Masaru, Wakatsuki× Takashi, Nakano× Tatsuya, Ohno× Ken, Ando× Kazutoshi, Murata× Shingo, Kato× Daisaku, Yoshida× Noriyuki, Okonogi× Masaru, Wakatsuki× Takashi, Nakano |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The aim of this study was to assess the feasibility of planning dose-volume histogram (DVH) parameters in computed tomography-based 3D image-guided brachytherapy for locally advanced cervical cancer. In a prospective multi-institutional study, 60 patients with stage IIA2-IVA cervical cancer from eight institutions were treated with external beam radiotherapy using central shielding and intracavitary or hybrid (combined intracavitary/interstitial) brachytherapy (HBT). The dose constraints were set as a cumulative linear quadratic equivalent dose (EQD2) of at least 60 Gy for high-risk clinical target volume (HR-CTV) D90, D2cc ≤ 75 Gy for rectum, D2cc ≤ 90 Gy for bladder and D2cc ≤ 75 Gy for sigmoid. The median HR-CTV D90 was 70.0 Gy (range, 62.8-83.7 Gy) in EQD2. The median D2cc of rectum, bladder and sigmoid was 57.1 Gy (range, 39.8-72.1 Gy), 68.9 Gy (range, 46.5-84.9 Gy) and 57.2 Gy (range, 39.2-71.2 Gy) in EQD2, respectively. In 76 of 233 sessions (33%), 23 patients underwent HBT, and the median number of interstitial needles was 2 (range, 1-5). HBT for a bulky HR-CTV (≥40 cm3) significantly improved the HR-CTV D90 compared with intracavitary brachytherapy alone (P = 0.010). All patients fulfilled the dose constrains for target and at risk organs by undergoing HBT in one-third of sessions. We conclude that the planning DVH parameters used in our protocol are clinically feasible. | |||||
書誌情報 |
Journal of radiation research 巻 62, 号 3, p. 502-510, 発行日 2021-02 |
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出版者 | ||||||
出版者 | Oxford University Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-9157 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 33532828 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1093/jrr/rraa138 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://academic.oup.com/jrr/article/62/3/502/6126961 |