JP4424651B2 - 統合ct−petシステム - Google Patents
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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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
-
- 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
- A61B6/4007—Arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units
- A61B6/4014—Arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units arranged in multiple source-detector units
-
- 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
-
- 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
- A61B6/48—Diagnostic techniques
- A61B6/482—Diagnostic techniques involving multiple energy imaging
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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
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
- A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
- A61B6/5235—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
-
- 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
- A61B6/02—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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- Life Sciences & Earth Sciences (AREA)
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Description
12 イメージング領域
50、90 X線源
73 軸
80、82、84 扇状ビーム
86、88、89 焦点スポット
Claims (12)
- イメージング領域(12)の両側に配設され、その間に前記イメージング領域を定める、向かい合って面する第1及び第2放出/透過検出器セグメントと、
前記イメージング領域の外側に隣接し、且つ少なくとも1つの前記検出器セグメントに隣接して配設された放射線源(50)と、
を備え、
前記放射線源が、焦点スポットから放射される放射線の扇状ビーム(82)を生成し、前記扇状ビームがイメージング領域を通り他方の検出器セグメントに向けられた軌道に沿って配向されるように配置され、前記セグメントが放出放射線及び透過放射線の両方を収集し、
前記イメージング領域(12)の周りに前記第1及び第2検出器セグメントに加えて複数の付加的な検出器セグメントを配置して環状の検出器面を形成した、フルリング検出器組立体を含み、
前記検出器組立体が並進軸(73)に沿った検出器幅(W)を有し、前記扇状ビームが前記検出器幅にわたる前記検出器セグメントの範囲に対応するようになった、
ことを特徴とするフォトンイメージング装置。 - 前記線源が前記焦点スポットの位置を改変し、従って前記扇状ビームの前記軌道を改変するように制御可能であり、前記扇状ビームが、種々の軌道(80、82、84)に沿って前記イメージング領域を横切り、種々の検出器セグメントの方向に配向可能にされた、請求項1に記載のフォトンイメージング装置。
- 前記検出器組立体が放出放射線及び透過放射線の両方を同時に収集するようになっており、前記装置が、検出器に連結され、収集された放出放射線と透過放射線とを区分するソータ(69)をさらに含む請求項2に記載のフォトンイメージング装置。
- データ収集中に前記線源がオン・オフされ、前記扇状ビームによって範囲が定められた検出器セグメントが、前記線源のオフ期間及び前記線源のオン期間の間に、放出データ及び透過データを断続的に収集するようになった、請求項2に記載のフォトンイメージング装置。
- 前記線源が前記検出器組立体の第1側に並置された第1線源(50)であり、前記装置が、前記検出器組立体の前記第1側とは反対側にある前記検出器組立体の第2側に並置された第2線源(90)を含み、前記第2線源(90)もまた、前記イメージング領域を実質的に横切って前記検出器組立体の対向するセグメントに配向される扇状ビームを生成する請求項2に記載のフォトンイメージング装置。
- データ収集セッション中に前記線源を制御して、種々の扇状ビームの軌道を選択するようにさせる線源制御装置(17)をさらに含む請求項2に記載のフォトンイメージング装置。
- 前記線源が第1線源(86)であり、前記装置が、前記イメージング領域(12)の外側に隣接し且つ他方の検出器セグメントに隣接して配設された第2線源をさらに含み、前記第2線源は第2焦点から放射される放射線の第2扇状ビーム(82)を生成し、前記第2扇状ビームが前記イメージング領域(12)を通り少なくとも1つの前記検出器セグメントの方向に向けられる軌道に沿って配向されるように前記第2線源が並置されている、請求項1に記載のフォトンイメージング装置。
- 前記線源が前記検出器組立体の第1側に隣接して該第1側に並置された固定環状組立体を含む請求項2に記載のフォトンイメージング装置。
- 前記線源が、少なくとも第1及び第2扇状ビーム(80、82)を、異なる焦点スポットから異なる軌道に沿って異なる検出器セグメントの方向に同時に生成する請求項2に記載のフォトンイメージング装置。
- 環状の検出器面をイメージング領域(12)の周りに形成するように配置された第1及び第2検出器セグメントを含むフルリングのフォトン検出器組立体と、
前記イメージング領域の外側に隣接し、前記検出器組立体の第1側に隣接して配設された放射線源(50)と、
を備え、
前記放射線源(50)は、焦点(86)から放射される放射線(80)の扇状ビームを生成し、前記扇状ビームが前記イメージング領域を通り前記イメージング領域(12)の反対側にある前記検出器面の方向に向けられる軌道に沿って配向されるように前記放射線源が配置され、該線源は、前記焦点(86)の位置を改変し、従って前記扇状ビームの前記軌道を改変するように制御可能であり、その結果前記扇状ビームが種々の軌道(80、82、84)に沿って前記イメージング領域を横切り前記検出器面の種々のセグメントの方向に配向され、
前記セグメントが放出放射線及び透過放射線の両方を収集し、
前記イメージング領域(12)の周りに前記第1及び第2検出器セグメントに加えて複数の付加的な検出器セグメントを配置して環状の検出器面を形成した、フルリング検出器組立体を含み、
前記検出器組立体が並進軸(73)に沿った検出器幅(W)を有し、前記扇状ビームが前記検出器幅にわたる前記検出器セグメントの範囲に対応するようになった複合型放出・透過イメージング装置。 - 前記線源が前記検出器組立体の第1側に隣接して該第1側に並置された固定環状組立体を含む請求項10に記載の複合型放出・透過イメージング装置。
- 前記線源が、少なくとも第1及び第2扇状ビーム(80、82)を、異なる焦点スポットから異なる軌道に沿って異なる検出器セグメントの方向に同時に生成する請求項11に記載の複合型放出・透過イメージング装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/064,912 US6661866B1 (en) | 2002-08-28 | 2002-08-28 | Integrated CT-PET system |
Publications (2)
Publication Number | Publication Date |
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JP2004081870A JP2004081870A (ja) | 2004-03-18 |
JP4424651B2 true JP4424651B2 (ja) | 2010-03-03 |
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JP2003303864A Expired - Fee Related JP4424651B2 (ja) | 2002-08-28 | 2003-08-28 | 統合ct−petシステム |
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US (1) | US6661866B1 (ja) |
JP (1) | JP4424651B2 (ja) |
DE (1) | DE10339493A1 (ja) |
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US5376795A (en) | 1990-07-09 | 1994-12-27 | Regents Of The University Of California | Emission-transmission imaging system using single energy and dual energy transmission and radionuclide emission data |
US5600145A (en) | 1995-01-19 | 1997-02-04 | Picker International, Inc. | Emission/transmission device for use with a dual head nuclear medicine gamma camera with the transmission source located behind the emission collimator |
US5672877A (en) | 1996-03-27 | 1997-09-30 | Adac Laboratories | Coregistration of multi-modality data in a medical imaging system |
US6211523B1 (en) | 1998-06-03 | 2001-04-03 | Picker International, Inc. | Autocontouring device for gamma camera using radioactive source and transverse motion |
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