| 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 |
Detectability of regional lung ventilation with flat-panel detector-based dynamic radiography |
| 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 |
| ID登録 |
|
|
ID登録 |
10.24517/00013148 |
|
ID登録タイプ |
JaLC |
| 著者 |
Tanaka, Rie
Sanada, Shigeru
Okazaki, Nobuo
Kobayashi, Takeshi
Suzuki, Masayuki
Matsui, Takeshi
Matsui, Osamu
|
| 著者別表示 |
田中, 利恵
真田, 茂
小林, 健一
鈴木, 正行
松井, 修
|
| 提供者所属 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
金沢大学大学院医学系研究科量子医療技術学 |
| 書誌情報 |
Journal of Digital Imaging
巻 21,
号 1,
p. 109-120,
発行日 2008-03-01
|
| ISSN |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0897-1889 |
| NCID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10724308 |
| DOI |
|
|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1007/s10278-007-9017-8 |
| 出版者 |
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|
出版者 |
Springer Verlag (Germany) |
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
This study was performed to investigate the ability of breathing chest radiography using flat-panel detector (FPD) to quantify relative local ventilation. Dynamic chest radiographs during respiration were obtained using a modified FPD system. Imaging was performed in three different positions, ie, standing and right and left decubitus positions, to change the distribution of local ventilation. We measured the average pixel value in the local lung area. Subsequently, the interframe differences, as well as difference values between maximum inspiratory and expiratory phases, were calculated. The results were visualized as images in the form of a color display to show more or less x-ray translucency. Temporal changes and spatial distribution of the results were then compared to lung physiology. In the results, the average pixel value in each lung was associated with respiratory phase. In all positions, respiratory changes of pixel value in the lower area were greater than those in the upper area (P < 0.01), which was the same tendency as the regional differences in ventilation determined by respiratory physiology. In addition, in the decubitus position, it was observed that areas with large respiratory changes in pixel value moved up in the vertical direction during expiration, which was considered to be airway closure. In conclusion, breathing chest radiography using FPD was shown to be capable of quantifying relative ventilation in local lung area and detecting regional differences in ventilation and timing of airway closure. This method is expected to be useful as a new diagnostic imaging modality for evaluating relative local ventilation. © 2007 Society for Imaging Informatics in Medicine. |
| 著者版フラグ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
ME-PR-TANAKA-R-109.pdf (3.0 MB)
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