| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2017-10-03 |
| タイトル |
|
|
タイトル |
放射線治療におけるターゲット動体シミュレーションを用いた追跡精度の検討 |
| タイトル |
|
|
タイトル |
Simulation study to evaluate accuracy of target tracking in external radiotherapy |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| 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 |
| ID登録 |
|
|
ID登録 |
10.24517/00013458 |
|
ID登録タイプ |
JaLC |
| 著者 |
田中, 利恵
市川, 勝弘
森, 慎一郎
土橋, 卓
熊谷, 始紀
川嶋, 広貴
箕原, 伸一
真田, 茂
|
| 著者別表示 |
Tanaka, Rie
Ichikawa, Katsuhiro
Sanada, Shigeru
|
| 書誌情報 |
医用画像情報学会雑誌 = Japan Society of Imaging and Information Sciences in Medicine
巻 27,
号 2,
p. 33-37,
発行日 2010-01-01
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0910-1543 |
| NCID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN10156808 |
| 出版者 |
|
|
出版者 |
医用画象情報学会 |
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The purpose of this study was to address image lag in target tracking and its influence on the accuracy of target tracking. Fluoroscopic images were obtained using a direct type of dynamic flat-panel detector (FPD) . Image lag properties, modulation transfer function (MTF) , and profile curves were measured. Digital phantoms of metal sphere with and without blurred edge due to image lag were simulated using the results, respectively, and then superimposed on breathing chest radiographs of a patient. The moving target with and without image lag was traced using a template-matching technique. In the results, the image lag for the first frame after X-ray cutoff was 2.0% and decreased to less than 0.1% in the fifth frame. In the measurement of profile curves on the edges of tungsten material plates, the effect of image lag was seen as blurred edges of the plate. The blurred edges of the plate were also indicated as reduction of MTF. However, the target could be traced without tracking error. The results indicated that there was no effect of image lag on target tracking in usual breathing speed in a radiotherapy situation. |
| 権利 |
|
|
権利情報 |
Copyright (c) 2010 by Japan Society of Medical Imaging and Information Sciences |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連URI |
|
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
http://www.mii-sci.jp/ |
| 関連URI |
|
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
http://ci.nii.ac.jp/naid/130000262792 |
| 関連URI |
|
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
http://www.jstage.jst.go.jp/article/mii/27/2/27_33/_article |
ME-PR-TNAKA-R-33.pdf (1.0 MB)
.png)
