JP2005288162A - 静止型コンピュータ断層撮影システム及び方法 - Google Patents
静止型コンピュータ断層撮影システム及び方法 Download PDFInfo
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- 238000002591 computed tomography Methods 0.000 title description 34
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4007—Arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units
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- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4233—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
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- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
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- A61B6/4452—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being able to move relative to each other
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
- A61B6/4028—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot resulting in acquisition of views from substantially different positions, e.g. EBCT
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Abstract
【解決手段】 放射線イメージング・システム(10)は、撮像ボリューム(51)の所望の部分を実質的に取り囲んでいると共に、撮像ボリューム(51)の周りの複数の個別の線源位置(57,59)から放射線ビーム(38)を放出するように構成されている1つ又は複数の放射線源(56,58)と、透過放射線ビームを受け取るように構成されている1つ又は複数の検出器(60,62)とを含んでいる。放射線源(56)及び検出器(60)の内の少なくとも1つは、放射線ビームに対して妨害のない経路を生じさせ且つ透過放射線ビームをより完全に受け取るように変位可能である。
【選択図】 図5
Description
12 スキャナ
14 テーブル
30 分布形X線源
32 電子ビーム・エミッタ
34 ターゲット
35 開口
36 電子ビーム
37 妨害のない経路
38 X線ビーム
40 コリメータ
42 開口
44 コリメートされたビーム
46 検出器
48 検出器素子
50 信号処理回路
51 撮像ボリューム
52、54 検出器
56 分布形放射線源
57、59 線源位置
58 線源
60、62 検出器
71 領域
72、74 分布形放射線源
73、75、79、81 線源位置
76、82 検出器
78、80 線源
88、98 線源
89、99 線源位置
94、104、114、116、126、128 検出器部分
108 線源
109 線源位置
134、136、138、140 線源
148 検出器
Claims (9)
- 撮像ボリューム(51)の所望の部分を実質的に取り囲んでいると共に、前記撮像ボリューム(51)の周りの複数の個別の線源位置(57,59)から放射線ビーム(38)を放出するように構成されている1つ又は複数の分布形放射線源(30,56,58)と、
前記撮像ボリューム(51)の所望の部分を透過した放射線ビーム(38)を受け取るように構成されている1つ又は複数の検出器(46,52,54)とを含み、
前記1つ又は複数の分布形放射線源(56、58)及び前記1つ又は複数の検出器(52,54)の内の少なくとも1つは、前記撮像ボリューム(51)の所望の部分に照射するために放射線ビーム(38)に対して且つ該放射線ビーム(38)を受け取るために前記検出器(52,54)対して妨害のない経路(37)を生じさせるように変位可能であること、
を特徴とするイメージング・システム(10)。 - 前記1つ又は複数の検出器(52,54)は、放射線ビーム(38)を放出するために前記1つ又は複数の放射線源(56)に対して少なくとも1つの個別の開口(35)を開けることによって、放射線ビーム(38)を前記撮像ボリューム(51)の所望の部分に照射できるようにするために、横に移動するように構成されている、請求項1記載のシステム。
- 前記1つ又は複数の検出器(90,92)の1つ又は複数の部分(94)は、放射線ビーム(38)を放出するために前記1つ又は複数の分布形放射線源(88)に対して少なくとも1つの個別の開口(35)を開けることによって、放射線ビーム(38)を前記撮像ボリューム(51)の所望の部分に照射できるようにするために、横に移動するように構成されている、請求項1記載のシステム。
- 前記1つ又は複数の検出器(52,60)は、放射線ビーム(38)を放出するために前記1つ又は複数の分布形放射線源(56、58)に対して少なくとも1つの個別の開口(35)を開けることによって、放射線ビームを前記撮像ボリュームの所望の部分に照射できるようにするために、章動するように構成されている、請求項1記載のシステム。
- 前記1つ又は複数の検出器(90,92)の1つ又は複数の部分(94)は、放射線ビーム(38)を放出するために前記1つ又は複数の分布形放射線源(88)に対して少なくとも1つの個別の開口(35)を開けることによって、放射線ビーム(38)を前記撮像ボリューム(51)の所望の部分に照射できるようにするために、章動するように構成されている、請求項1記載のシステム。
- 前記1つ又は複数の検出器(60,62)は、放射線ビーム(38)を放出する前記1つ又は複数の分布形放射線源(56)と大体対向して配置された1つ又は複数の個別の線源位置(59)からの開口(35)の少なくとも一部分を覆うことによって放射線ビーム(38)を遮るために、横に移動するように構成されている、請求項1記載のシステム。
- 前記1つ又は複数の検出器(60,62)は、放射線ビーム(38)を放出する前記1つ又は複数の分布形放射線源(56)と大体対向して配置された1つ又は複数の個別の線源位置(59)の開口の少なくとも一部分を覆うことによって放射線ビーム(38)を遮るために、章動するように構成されている、請求項1記載のシステム。
- 前記1つ又は複数の検出器(90,92)の1つ又は複数の部分(94)は、放射線ビーム(38)を放出する前記1つ又は複数の分布形放射線源(56)と大体対向して配置された1つ又は複数の個別の線源位置(59)の開口の少なくとも一部分を覆うことによって放射線ビーム(38)を遮るために、横に移動するように構成されている、請求項1記載のシステム。
- 前記1つ又は複数の検出器(60,62)の少なくとも1つの部分(94)は、放射線ビーム(38)を放出する前記1つ又は複数の分布形放射線源(56)と大体対向して配置された少なくとも1つの個別の線源位置(59)の開口を少なくとも部分的に覆うことによって放射線ビーム(38)を遮るために、章動するように構成されている、請求項1記載のシステム。
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US10/814,537 US7142629B2 (en) | 2004-03-31 | 2004-03-31 | Stationary computed tomography system and method |
US10/814,537 | 2004-03-31 |
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JP2005288162A true JP2005288162A (ja) | 2005-10-20 |
JP2005288162A5 JP2005288162A5 (ja) | 2008-05-15 |
JP4753602B2 JP4753602B2 (ja) | 2011-08-24 |
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US (1) | US7142629B2 (ja) |
JP (1) | JP4753602B2 (ja) |
CN (1) | CN1676102B (ja) |
DE (1) | DE102005014073A1 (ja) |
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JPS54114992A (en) * | 1978-02-28 | 1979-09-07 | Shimadzu Corp | Tomogram image pick up unit |
JPS6182737A (ja) * | 1984-05-29 | 1986-04-26 | エルシント リミテツド | Ctスキヤナ |
JPS6120536A (ja) * | 1984-07-09 | 1986-01-29 | 株式会社東芝 | X線断層撮影装置 |
JPS6397151A (ja) * | 1986-10-09 | 1988-04-27 | イメイトロン インコ−ポレ−テツド | 高速ct走査システムを用いた断層合成方法 |
JPH0426415A (ja) * | 1990-05-22 | 1992-01-29 | Shimadzu Corp | X線ct装置 |
JPH04253847A (ja) * | 1990-07-23 | 1992-09-09 | Hitachi Ltd | X線断層撮影装置 |
JPH08275938A (ja) * | 1995-04-03 | 1996-10-22 | Hitachi Medical Corp | X線ct装置 |
JP2003079614A (ja) * | 2001-09-12 | 2003-03-18 | Hitachi Ltd | 放射線検査装置及び放射線検査方法 |
JP2004081870A (ja) * | 2002-08-28 | 2004-03-18 | Ge Medical Systems Global Technology Co Llc | 統合ct−petシステム |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009077903A (ja) * | 2007-09-26 | 2009-04-16 | Toshiba Corp | X線ct装置 |
JP2011512226A (ja) * | 2008-02-22 | 2011-04-21 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 分散型線源によるx線イメージングのための高解像度の略静的セットアップ |
Also Published As
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CN1676102A (zh) | 2005-10-05 |
JP4753602B2 (ja) | 2011-08-24 |
US7142629B2 (en) | 2006-11-28 |
DE102005014073A1 (de) | 2005-10-20 |
CN1676102B (zh) | 2010-04-07 |
US20050226363A1 (en) | 2005-10-13 |
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