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Effects of dual-energy subtraction chest radiography on detection of small pulmonary nodules with varying attenuation: receiver operating characteristic analysis using a phantom study
http://hdl.handle.net/2298/20258
http://hdl.handle.net/2298/20258633a6f2c-6b41-47db-9757-c7251e77108d
名前 / ファイル | ライセンス | アクション |
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JJR_28_3_214-219.pdf (295.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-07-13 | |||||
タイトル | ||||||
タイトル | Effects of dual-energy subtraction chest radiography on detection of small pulmonary nodules with varying attenuation: receiver operating characteristic analysis using a phantom study | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | dual-energy subtraction, flat-panel detector, chest radiography, ROC analysis, phantom | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
Oda, Seitaro
× Oda, Seitaro× Awai, Kazuo× Funama, Yoshinori× 宇都宮, 大輔× Yanaga, Yumi× Kawanaka, Koichi× 山下, 康行 |
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別言語の著者 |
尾田, 済太郎
× 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× 山下, 康行 |
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内容記述 | ||||||
内容記述 | Purpose: To investigate the detectability of simulated pulmonary nodules with different X-ray attenuation by flat-panel detector (FPD) chest radiography using a dual-exposure dual-energy subtraction (DES) technique. Materials and Methods: Using a FPD radiography system we obtained 108 sets of chest radiographs of a chest phantom. They consisted of 54 sets each of chest radiographs with- and without simulated nodules. Each data set contained a standard- and a corresponding dual-energy subtracted chest radiograph (DES image). The diameter of the simulated nodules was 8-, 10-, and 12 mm; nodules of each size manifested attenuation of -450, -200, and 30 Hounsfield units (HU). We performed receiver operating characteristic (ROC) analysis to compare the observers’ performance in detecting nodules. Results: For -450 HU nodules the mean area under the ROC curve (AUC) without and with DES images was 0.66 and 0.77, respectively; the difference was significant (paired t-test, p < 0.01). For nodules with -200- and 30 HU, there was no significant difference in the AUC value (0.79 vs. 0.77, p=0.13; 0.92 vs. 0.94, p=0.17, respectively). Conclusion: The addition of DES images to standard chest radiographs improved the performance of radiologists charged with detecting simulated nodules with an attenuation of -450 HU. |
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書誌情報 |
Japanese Journal of Radiology 巻 28, 号 3, p. 214-219, 発行年 2010-04 |
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PubMed番号 | ||||||
関連タイプ | isVersionOf | |||||
関連識別子 | 20437132 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
関連識別子 | 10.1007/s11604-009-0411-7 | |||||
権利 | ||||||
権利情報 | © Japan Radiological Society 2010 | |||||
権利 | ||||||
権利情報 | Springer | |||||
情報源(ISSN) | ||||||
関連名称 | 18671071 | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
295808 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
日本十進分類法 | ||||||
主題 | 492.4 | |||||
出版者 | ||||||
出版者 | Springer | |||||
出版者 | ||||||
出版者 | Japan Radiological Society | |||||
資源タイプ | ||||||
内容記述 | 論文(Article) | |||||
資源タイプ・ローカル | ||||||
雑誌掲載論文 | ||||||
資源タイプ・NII | ||||||
Journal Article | ||||||
資源タイプ・DCMI | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
URL | ||||||
内容記述 | http://www.springerlink.com/content/kq88067j70104k40/ |