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らせんCTにおける平静呼吸下スキャン時の位相と病変検出能に関する基礎的検討
http://hdl.handle.net/10748/5715
http://hdl.handle.net/10748/57153aae3e7f-50f2-4cf2-8d01-a63196cb43a4
名前 / ファイル | ライセンス | アクション |
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10685-001.pdf (631.8 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2013-09-20 | |||||
タイトル | ||||||
タイトル | らせんCTにおける平静呼吸下スキャン時の位相と病変検出能に関する基礎的検討 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | らせんCT | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 平静呼吸 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 病変検出能 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | spiral volumetric CT | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | under quiet respiration | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | a focus detectability | |||||
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 | departmental bulletin paper | |||||
著者 |
小倉, 泉
× 小倉, 泉× 松本, 満臣× 根岸, 徹× 安部, 真治× 高木, 博× 岡田, 安弘× 松尾, 晋也× 佐々木, 恵× 草野, 長二× 吉田, 榮積× 鎌田, 憲子 |
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著者(ヨミ) |
オグラ, イズミ
× オグラ, イズミ× マツモト, ミツオミ× ネギシ, トオル× アベ, シンジ× タカギ, ヒロシ× オカダ, ヤスヒロ× マツオ, シンヤ× ササキ, メグミ× クサノ, チョウジ× ヨシダ, エズミ× カマタ, ノリコ |
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著者別名 |
Izumi, Ogura
× Izumi, Ogura× Mituomi, Matumoto× Toru, Negishi× Shinji, Abe× Hiroshi, Takagi× Yasuhiro, Okada× Shinya, Matuo× Megumi, Sasaki× Chouji, Kusano× Ezumi, Yoshida× Noriko, Kamata |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 前回の報告において我々は,らせんCTによる平静呼吸下スキャンでの病変検出能について可動模擬病巣ファントムを用いた基礎的な検討を行った。この中で,呼吸性往復運動を正弦波運動に近似した模擬病巣のスライスプロフィールは,ガントリーと模擬病巣の交差位相に依存することを推定した。 そこで今回,ガントリー位置検出器を新たに製作し,この仮定に対する実験的な検討を行った。またこれらの実験は,1回転あたりのスキャン時間,テーブル移動速度及び管電流値が異なる3機種のらせんCTについて行い,等速直線運動時および正弦波状往復運動時の模擬病巣の検出能に関する検討を行った。 その結果,正弦波状往復運動時のスライスプロフィールは,ガントリーと模擬病巣の交差位相に依存することを確認した。また,平静呼吸下スキャンでは,1回転あたりのスキャン時間が1秒でテーブル移動速度が20㎜/sの時,模擬病巣の検出能が最も優れていた。 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In the previous report, we made a basic examination of the focus detectability during relaxed state of respiration by using a movable dummy focus phantom. In the report, we had suggested that the slice profile moving with a sinewave depended on the phase of position between gantry and dummy focus phantom. Therefore, we produced a detector of gantry position, and experimented this relationship. And, we experimented the detectability of a dummy focus phantom traveling with linear and sine-wave motion on the three Spiral Volumetric CTs which had different scanning time of one rotation, traveling velocity of a bed, and value of the tube current in each factor. In this result, we made sure that the slice profile moving with a sine-wave motion depended on the phase of positions between gantry and dummy focus phantom. And, under relaxed state of respiration, the detectability of a dummy focus phantom was most excellent when the scanning time of one rotation was 1 s and the moving velocity of a bed was 20 mm/s. |
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書誌情報 |
東京都立医療技術短期大学紀要 = Bulletin of Tokyo Metropolitan College of Allied Medical Sciences 巻 10, p. 49-58, 発行日 1997-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0916040X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN1010184X | |||||
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 | |||||
その他のタイトル | ||||||
その他のタイトル | Basic study of the relationship between the cross section phase during relaxed respiration and the focus detectability with spiral volumetric CT | |||||
出版者 | ||||||
出版者 | 東京都立医療技術短期大学紀要委員会 |