| Item type |
文献 / Documents(1) |
| 公開日 |
2021-09-01 |
| アクセス権 |
|
|
アクセス権 |
open access |
| 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 |
| 出版社版DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1093/jrr/rraa079 |
|
|
言語 |
ja |
|
|
関連名称 |
10.1093/jrr/rraa079 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
Determination of reproducibility of end-exhaled breath-holding in stereotactic body radiation therapy |
|
言語 |
en |
| タイトル別表記 |
|
|
その他のタイトル |
Reproducibility of breath-hold irradiation of lung |
|
言語 |
en |
| 著者 |
佐々木, 幹治
生島, 仁史
櫻川, 加奈子
ヨコイシ, ミチヒロ
ツヅキ, アキラ
スギモト, ワタル
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Methods to evaluate the positional reproducibility of breath-hold irradiation mostly require manual operation. The purpose of this study is to propose a method to determine the reproducibility of breath-hold irradiation of lung tumors between fractions using non-artificial methods. This study included 13 patients who underwent terminal exhaled breath-hold irradiation for primary and metastatic lung cancer. All subjects received a prescribed dose of 60 Gy/8 fractions. The contours of the gross tumor volume (GTV) were extracted by threshold processing using treatment-planning computed tomography (CT) and cone-beam CT (CBCT), which was done just before the beginning of the treatment. The method proposed in this study evaluates the dice similarity coefficient (DSC) and Hausdorff distance (HD) by comparing two volumes, the GTVCTS (GTV obtained from treatment-planning CT) and GTVCBCT (GTV obtained from CBCT). The reference contours for DSC and HD are represented by GTVCTS. The results demonstrated good visual agreement for cases with a DSC of ~0.7. However, apparent misalignment occurred when the DSC was <0.5. HD was >2 mm in 3 out of 13 cases, and when the DSC was ~0.7, the HD was ~1 mm. In addition, cases with greater HD also demonstrated more significant variability. It was found that the DSC and HD evaluation methods for the positional reproducibility of breath-hold irradiation proposed in this study are straightforward and can be performed without the involvement of humans. Our study is of extreme significance in the field of radiation studies. |
|
言語 |
en |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
dice similarity coefficient |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Hausdorff distance |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
breath-hold irradiation |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
lung cancer |
| 書誌情報 |
en : Journal of Radiation Research
巻 61,
号 6,
p. 977-984,
発行日 2020-09-15
|
| 収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13499157 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00705792 |
| 出版者 |
|
|
出版者 |
Oxford University Press |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
The Japanese Radiation Research Society |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Japanese Society for Radiation Oncology |
|
言語 |
en |
| 権利情報 |
|
|
言語 |
en |
|
権利情報 |
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| EID |
|
|
識別子 |
367858 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
jrr_61_6_977.pdf (1.08 MB)
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