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適応型部分移動平均フィルタによる頭部単純CT画像における急性期脳梗塞の抽出能の改善
http://hdl.handle.net/10191/4862
http://hdl.handle.net/10191/48626007489d-d1f5-4c3a-8ae2-2970aadfdc4e
名前 / ファイル | ライセンス | アクション |
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jsrt_61_11_1531_1541_2005.pdf (387.9 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-05-29 | |||||
タイトル | ||||||
タイトル | 適応型部分移動平均フィルタによる頭部単純CT画像における急性期脳梗塞の抽出能の改善 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | 適応型部分移動平均フィルタによる頭部単純CT画像における急性期脳梗塞の抽出能の改善 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Computed tomography | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Image processing | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cerebral infarction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Early CT sign | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
その他のタイトル | ||||||
その他のタイトル | Improvement in Visibility and Detectability of Early Sign of Acute Stroke in Nonenhanced CT Images by Using and Adaptive Partial Smoothing Filter | |||||
著者 |
高橋, 規之
× 高橋, 規之× 李, 鎔範× 蔡, 篤儀× 石井, 清× 神尾, 總一郎 |
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著者別名 | ||||||
識別子 | 47551 | |||||
識別子Scheme | WEKO | |||||
姓名 | Takahashi, Noriyuki | |||||
著者別名 | ||||||
識別子 | 9 | |||||
識別子Scheme | WEKO | |||||
姓名 | Lee, Yongbum | |||||
著者別名 | ||||||
識別子 | 47553 | |||||
識別子Scheme | WEKO | |||||
姓名 | Tsai, Du-yih | |||||
著者別名 | ||||||
識別子 | 47554 | |||||
識別子Scheme | WEKO | |||||
姓名 | Ishii, Kiyoshi | |||||
著者別名 | ||||||
識別子 | 47555 | |||||
識別子Scheme | WEKO | |||||
姓名 | Kamio, Souichiro | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Detection of early infarct signs on nonenhanced CT is mandatory in patients with acute ischemic stroke. Loss of the gray-white matter interface at the lentiform nucleus or the insular ribbon has been an important early infact sign, which affects decisions on thrombolytic therapy. However, its detection is difficult, since early infarct sign is of subtle hypoattenuation. To improve the detectability of early infarct sign, image processing that could reduce local noise while preserving edges is desirable. To examine this issue, we devised an adaptive partial smoothing filter(APSF). Since the APSF markedly improves visibility of the normal gray-white matter interface, loss of the gray-white matter interface due to hypoattenuation could be more easily detected. The APSF was applied to clinical CT images in hyperacute stroke patients. Our preliminary results showed that the visibility and detectability of early infarct signs was much improved. To validate the usefulness of the proposed method, two commonly used smoothing filters were also employed for comparison. The results demonstrated the superiority of the APSF. Our proposed APSF can improve the visibility of the gray-white matter interface, thereby enhancing the detectability of early infarct signs. | |||||
書誌情報 |
日本放射線技術学会雑誌 en : 日本放射線技術学会雑誌 巻 61, 号 11, p. 1531-1541, 発行日 2005-11 |
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出版者 | ||||||
出版者 | 日本放射線技術学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03694305 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00197773 | |||||
著者版フラグ | ||||||
値 | publisher |