| 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 |
Development of pulmonary blood flow evaluation method with a dynamic flat-panel detector: quantitative correlation analysis with findings on perfusion scan |
| 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 |
10.24517/00013273 |
|
ID登録タイプ |
JaLC |
| 著者 |
Tanaka, Rie
Sanada, Shigeru
Fujimura, Masaki
Yasui, Masahide
Hayashi, Norio
Tsuji, Shiro
Okamoto, Hiroyuki
Nanbu, Yuko
Matsui, Osamu
|
| 著者別表示 |
田中, 利恵
真田, 茂
藤村, 政樹
安井, 正英
林, 則夫
辻, 志郎
岡本, 博之
松井, 修
|
| 提供者所属 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
金沢大学医薬保健研究域保健学系 |
| 書誌情報 |
Radiological Physics and Technology
巻 3,
号 1,
p. 40-45,
発行日 2010-01-01
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1865-0333 |
| NCID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA12236881 |
| DOI |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1007/s12194-009-0074-1 |
| 出版者 |
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|
出版者 |
Springer Verlag (Germany) / Japan Society of Medical Physics = 日本放射線技術学会 |
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Pulmonary blood flow is reflected in dynamic chest radiographs as changes in X-ray translucency, i.e., pixel values. Thus, decreased blood flow should be observed as a reduction of the variation of X-ray translucency. We performed the present study to investigate the feasibility of pulmonary blood flow evaluation with a dynamic flat-panel detector (FPD). Sequential chest radiographs of 14 subjects were obtained with a dynamic FPD system. The changes in pixel value in each local area were measured and mapped on the original image by use of a gray scale in which small and large changes were shown in white and black, respectively. The resulting images were compared to the findings in perfusion scans. The cross-correlation coefficients of the changes in pixel value and radioactivity counts in each local area were also computed. In all patients, pulmonary blood flow disorder was indicated as a reduction of changes in pixel values on the mapping image, and a correlation was observed between the distribution of changes in pixel value and those in radioactivity counts (0.7 ≤ r, 3 cases; 0.4 ≤ r < 0.7, 7 cases; 0.2 ≤ r < 0.4, 4 cases). The results indicated that the distribution of changes in pixel value could provide a relative measure related to pulmonary blood flow. The present method is potentially useful for evaluating pulmonary blood flow as an additional examination in conventional chest radiography. © 2009 Japanese Society of Radiological Technology and Japan Society of Medical Physics. |
| 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-40.pdf (463.8 kB)
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