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Ultra-High-Resolution Computed Tomography of the Lung: Image Quality of a Prototype Scanner
http://hdl.handle.net/10069/36039
http://hdl.handle.net/10069/3603914168bf6-45bf-42fa-a67d-50e981a5fab8
名前 / ファイル | ライセンス | アクション |
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PLoS10_137165.pdf (4.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-12-11 | |||||
タイトル | ||||||
タイトル | Ultra-High-Resolution Computed Tomography of the Lung: Image Quality of a Prototype Scanner | |||||
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 | |||||
著者 |
Kakinuma, Ryutaro
× Kakinuma, Ryutaro× Moriyama, Noriyuki× Muramatsu, Yukio× Gomi, Shiho× Suzuki, Masahiro× Nagasawa, Hirobumi× Kusumoto, Masahiko× Aso, Tomohiko× Muramatsu, Yoshihisa× Tsuchida, Takaaki× Tsuta, Koji× Maeshima, Akiko Miyagi× Tochigi, Naobumi× Watanabe, Shun-ichi× Sugihara, Naoki× Tsukagoshi, Shinsuke× Saito, Yasuo× Kazama, Masahiro× Ashizawa, Kazuto× Awai, Kazuo× Honda, Osamu× Ishikawa, Hiroyuki× Koizumi, Naoya× Komoto, Daisuke× Moriya, Hiroshi× Oda, Seitaro× Oshiro, Yasuji× Yanagawa, Masahiro× Tomiyama, Noriyuki× Asamura, Hisao |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose: The image noise and image quality of a prototype ultra-high-resolution computed tomography (U-HRCT) scanner was evaluated and compared with those of conventional high-resolution CT (C-HRCT) scanners. Materials and Methods: This study was approved by the institutional review board. A U-HRCT scanner prototype with 0.25 mm × 4 rows and operating at 120 mAs was used. The C-HRCT images were obtained using a 0.5 mm × 16 or 0.5 mm × 64 detector-row CT scanner operating at 150 mAs. Images from both scanners were reconstructed at 0.1-mm intervals; the slice thickness was 0.25 mm for the U-HRCT scanner and 0.5 mm for the C-HRCT scanners. For both scanners, the display field of view was 80 mm. The image noise of each scanner was evaluated using a phantom. U-HRCT and C-HRCT images of 53 images selected from 37 lung nodules were then observed and graded using a 5-point score by 10 board-certified thoracic radiologists. The images were presented to the observers randomly and in a blinded manner. Results: The image noise for U-HRCT (100.87 ± 0.51 Hounsfield units [HU]) was greater than that for C-HRCT (40.41 ± 0.52 HU; P <.0001). The image quality of U-HRCT was graded as superior to that of C-HRCT (P <.0001) for all of the following parameters that were examined: margins of subsolid and solid nodules, edges of solid components and pulmonary ves sels in subsolid nodules, air bronchograms, pleural indentations, margins of pulmonary vessels, edges of bronchi, and interlobar fissures. Conclusion: Despite a larger image noise, the prototype U-HRCT scanner had a significantly better image quality than the C-HRCT scanners. | |||||
書誌情報 |
PLOS ONE 巻 10, 号 9, p. e0137165, 発行日 2015-09-09 |
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出版者 | ||||||
出版者 | Public Library of Science | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 19326203 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1371/journal.pone.0137165 | |||||
権利 | ||||||
権利情報 | c 2015 Kakinuma et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited | |||||
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 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | PLOS ONE, 10(9), e0137165; 2015 |