| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2011-05-26 |
| タイトル |
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|
タイトル |
Detection of small pulmonary nodules on chest radiographs: efficacy of dual-energy subtraction technique using flat-panel detector chest radiography |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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|
アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
尾田, 済太郎
粟井, 和夫
船間, 芳憲
宇都宮, 大輔
彌永, 由美
河中, 功一
中浦, 猛
平井, 俊範
村上, 龍次
野守, 裕明
山下, 康行
|
| 内容記述 |
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|
内容記述タイプ |
Abstract |
|
内容記述 |
AIM:We investigated the effect of a double-exposure dual-energy subtraction (DES) technique on the performance of radiologists detecting small pulmonary nodules on flat-panel detector (FPD) chest radiographs.MATERIALS AND METHODS:Using FPD radiography we obtained 41 sets of chest radiographs from 26 patients with pulmonary nodules measuring ≤ 20 mm and from 15 normal subjects. Each data set included standard- and corresponding DES images. There were 6 non-solid-, 10 part-solid-, and 10 solid nodules. The mean size of the 26 nodules was 15.0 ± 4.8 mm. We performed receiver operating characteristic (ROC) analysis to compare the performance of 8 board-certified radiologists.RESULTS:For the 8 radiologists, the mean value of the area under the ROC curve (AUC) without and with DES images was 0.62 ± 0.05 and 0.68 ± 0.05, respectively; the difference was statistically significant (p = 0.02). For part-solid nodules, the difference of the mean AUC value was statistically significant (AUC = 0.61 ± 0.07 vs. 0.69 ± 0.05; p < 0.01); for non-solid nodules it was not (AUC = 0.62 ± 0.10 vs. 0.61 ± 0.09; p = 0.73), and for solid nodules it was not (AUC = 0.75 ± 0.10 vs. 0.78 ± 0.08; p = 0.23). For nodules with overlapping bone shadows, the difference of the mean AUC value was statistically significant (p = 0.03), for nodules without overlapping, it was not (p = 0.26).CONCLUSION:Use of a double-exposure DES technique at FPD chest radiography significantly improved the diagnostic performance of radiologists detecting small pulmonary nodules. |
| bibliographic_information |
en : Clinical Radiology
巻 65,
号 8,
p. 609-615,
発行年 2010-08
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| item_16_source_id_7 |
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収録物識別子 |
0009-9260 |
| 権利 |
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|
権利情報 |
(C) 2010 The Royal College of Radiologists Published by Elsevier Ltd |
| 出版タイプ |
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出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 日本十進分類法 |
|
|
主題Scheme |
NDC |
|
主題 |
492.4 |
| 出版者 |
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出版者 |
The Royal College of Radiologists Published by Elsevier Ltd |
| 関連 |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
http://doi.org/10.1016/j.crad.2010.02.012 |
CR_65_8_609-615.pdf (1.1 MB)
