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  1. 0 資料タイプ別
  2. 01 学術雑誌論文
  1. 090 医学部保健学科
  2. 10 学術雑誌論文
  3. 10 査読済論文

A novel noise reduction filter for improving visibiligy of early CT signs of hyperacute stroke: evaluation of the filter's performance : Preliminary clinical experience

http://hdl.handle.net/10191/6247
http://hdl.handle.net/10191/6247
f1184e2e-4c5a-4f82-86e6-ef78d4ef65b1
名前 / ファイル ライセンス アクション
05_0002.pdf 05_0002.pdf (1.3 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2008-04-18
タイトル
タイトル A novel noise reduction filter for improving visibiligy of early CT signs of hyperacute stroke: evaluation of the filter's performance : Preliminary clinical experience
言語
言語 eng
キーワード
主題Scheme Other
主題 Computed tomography
キーワード
主題Scheme Other
主題 Infarction
キーワード
主題Scheme Other
主題 Computer application
キーワード
主題Scheme Other
主題 Adaptive smoothing filter
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Takahashi, Noriyuki

× Takahashi, Noriyuki

WEKO 37774

Takahashi, Noriyuki

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Lee, Yongbum

× Lee, Yongbum

WEKO 9

Lee, Yongbum

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Tsai, Du-Yih

× Tsai, Du-Yih

WEKO 37776

Tsai, Du-Yih

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Ishii, Kiyoshi

× Ishii, Kiyoshi

WEKO 37777

Ishii, Kiyoshi

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著者別名
識別子Scheme WEKO
識別子 9
姓名 李, 鎔範
著者別名
識別子Scheme WEKO
識別子 37779
姓名 蔡, 篤儀
抄録
内容記述タイプ Abstract
内容記述 Purpose: To evaluate the performance of a novel noise reduction filter for improving the visibilty of early CT signs of hyperacute stroke on nonenhanced CT images. Material and Methods: Fourteen patients with middle cerebral artery occlusion within 4.5 hours after onset were used for evaluations. Signal-to-noise ratio (SNR) of the processed images with the noise reduction filter and that of original images were measured. Moreover, two neuroradiologists visually rated all the processed and original images on the visibility of normal and abnormal gray-white matter interface. Results: The SNR value of the processed images was approximately eight times as high as that of the original images, and a 87% reduction of noise was achieved using this technique. In the visual assessment, the results showed that both the visibility of normal gray-white matter interface and that of the loss of the gray-white matter interface were significantly improved by using the proposed method (p<0.05). Conclusion: The noise reduction filter proposed in the present study has the potential to improve the visibility of early CT signs of hyperacute stroke on nonenhanced CT images.
書誌情報 Radiation Medicine
en : Radiation Medicine

巻 25, 号 5, p. 247-254, 発行日 2007-06
出版者
出版者 Springer Berlin/Heidelberg
ISSN
収録物識別子タイプ ISSN
収録物識別子 18625274
DOI
識別子タイプ DOI
関連識別子 info:doi/10.1007/s11604-007-0129-3
著者版フラグ
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