JP2000504262A - 円及び線のコーン・ビーム断層写真法システムを用いた縦方向に無限界の物体の正確な領域再構成 - Google Patents
円及び線のコーン・ビーム断層写真法システムを用いた縦方向に無限界の物体の正確な領域再構成Info
- Publication number
- JP2000504262A JP2000504262A JP10527897A JP52789798A JP2000504262A JP 2000504262 A JP2000504262 A JP 2000504262A JP 10527897 A JP10527897 A JP 10527897A JP 52789798 A JP52789798 A JP 52789798A JP 2000504262 A JP2000504262 A JP 2000504262A
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- unlimited
- cone beam
- scan
- circular
- image
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Links
- 238000003325 tomography Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000005855 radiation Effects 0.000 claims abstract description 6
- 238000003384 imaging method Methods 0.000 claims description 13
- 238000013170 computed tomography imaging Methods 0.000 abstract description 4
- 238000002591 computed tomography Methods 0.000 description 19
- 238000011109 contamination Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- 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
- A61B6/027—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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/416—Exact reconstruction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/432—Truncation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S378/00—X-ray or gamma ray systems or devices
- Y10S378/901—Computer tomography program or processor
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Theoretical Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Pulmonology (AREA)
- General Physics & Mathematics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. コーン・ビーム放射線の線源及び検出器配列に関して縦方向に無限界 の物体が配向されている計算機式断層写真法イメージング・システムにおいて、 前記縦方向に無限界の物体の画像を再構成する方法であって、 少なくとも1つの円形走査経路及び少なくとも1つの線形走査経路に沿って、 前記縦方向に無限界の物体と前記コーン・ビーム線源との間の相対的な移動を確 立する工程と、 所定の軌道が通過横断されているときに前記物体の測定可能な領域を照射する ように前記コーン・ビームを動作させて、前記縦方向に無限界の物体の画像をコ ーン・ビーム・データとして前記検出器配列に投影する工程と、 前記コーン・ビームの形状に対する走査視野を画定する工程と、 前記走査についてのZ方向の誤差伝播距離を決定する工程と、 前記走査視野の前記画定を誤差伝播距離に従って修正する工程と、 前記修正された走査視野内で、前記少なくとも1つの円形走査経路及び前記少 なくとも1つの線形走査経路から画像再構成データの1つのセットを形成する工 程とを備えた縦方向に無限界の物体の画像を再構成する方法。 2. 前記縦方向に無限界の物体と前記コーン・ビーム線源との間の相対的 な移動を確立する工程は、 前記コーン・ビーム線源を静止した位置に固定する工程 と、 前記縦方向に無限界の物体の選択的な回転により円形軌道を確立する工程と、 前記縦方向に無限界の物体の線形の移動により線形経路を確立する工程とを更 に含んでいる請求項1に記載の方法。 3. 前記縦方向に無限界の物体のイメージングされるべき縦方向の範囲の 全体がイメージングされるまで、繰り返し円形走査を行うと共に少なくとも1つ の線形走査を行う工程を更に含んでいる請求項1に記載の方法。 4. 走査視野を画定する工程は、両端に円錐を備えて終端している円筒に より前記走査視野を画定する工程を更に含んでおり、前記円筒及び前記円錐の軸 は、回転の軸と一致している請求項1に記載の方法。 5. コーン・ビーム放射線の線源及び検出器配列に関して縦方向に無限界 の物体が配向されている計算機式断層写真法イメージング・システムにおいて、 前記縦方向に無限界の物体の画像を再構成するシステムであって、 少なくとも1つの円形走査経路及び少なくとも1つの線形走査経路に沿って、 前記縦方向に無限界の物体と前記コーン・ビーム線源との間の相対的な移動を確 立する手段と、 所定の軌道が通過横断されているときに前記物体の測定可能な領域を照射する ように動作させられて、前記縦方向に無限界の物体の画像をコーン・ビーム・デ ータとして前記検出器配列に投影するコーン・ビームと、 該コーン・ビームの形状に対する走査視野と、 前記走査についてのZ方向の誤差伝播距離と、 前記走査視野の前記画定を誤差伝播距離に従って修正する手段と、 前記修正された走査視野内で、前記少なくとも1つの円形走査経路及び前記少 なくとも1つの線形走査経路から画像再構成データの1つのセットを形成する手 段とを備えた縦方向に無限界の物体の画像を再構成するシステム。 6. 前記縦方向に無限界の物体と前記コーン・ビーム線源との間の相対的 な移動を確立する手段は、 前記コーン・ビーム線源を静止した位置に固定する手段と、 前記縦方向に無限界の物体の選択的な回転により確立される円形軌道と、 前記縦方向に無限界の物体の線形の移動により確立される線形経路とを更に含 んでいる請求項5に記載のシステム。 7. 前記縦方向に無限界の物体のイメージングされるべき縦方向の範囲の 全体がイメージングされるまで、繰り返し円形走査を行うと共に少なくとも1つ の線形走査を行う手段を更に含んでいる請求項5に記載のシステム。 8. 前記走査視野は、両端に円錐を備えて終端している円筒により画定さ れている走査視野を含んでおり、前記円筒及び前記円錐の軸は、回転の軸と一致 している請求項5に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/761,051 US5706325A (en) | 1996-12-05 | 1996-12-05 | Exact regional reconstruction of longitudinally-unbounded objects using a circle-and-line cone beam tomographic system |
US08/761,051 | 1996-12-05 | ||
PCT/US1997/023142 WO1998027415A2 (en) | 1996-12-05 | 1997-12-04 | Exact regional reconstruction of longitudinally-unbounded objects using a circle-and-line cone beam tomographic system |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000504262A true JP2000504262A (ja) | 2000-04-11 |
JP4212118B2 JP4212118B2 (ja) | 2009-01-21 |
Family
ID=25060963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52789798A Expired - Fee Related JP4212118B2 (ja) | 1996-12-05 | 1997-12-04 | 円及び線のコーン・ビーム断層写真法システムを用いた縦方向に無限界の物体の正確な領域再構成 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5706325A (ja) |
EP (1) | EP0906059A2 (ja) |
JP (1) | JP4212118B2 (ja) |
WO (1) | WO1998027415A2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008289936A (ja) * | 2001-01-30 | 2008-12-04 | Toshiba Corp | X線ct装置 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6014419A (en) * | 1997-11-07 | 2000-01-11 | Hu; Hui | CT cone beam scanner with fast and complete data acquistion and accurate and efficient regional reconstruction |
US6148056A (en) * | 1999-02-22 | 2000-11-14 | General Electric Company | Efficient cone-beam reconstruction system using circle-and-line orbit data |
US7280632B2 (en) * | 2001-08-16 | 2007-10-09 | University Of Central Florida Research Foundation, Inc. | Exact filtered back projection (FBP) algorithm for spiral computer tomography with variable pitch |
US7305061B2 (en) * | 2001-08-16 | 2007-12-04 | Research Foundation Of The University Of Central Florida | Efficient image reconstruction algorithm for the circle and arc cone beam computer tomography |
US6771733B2 (en) | 2001-08-16 | 2004-08-03 | University Of Central Florida | Method of reconstructing images for spiral and non-spiral computer tomography |
US6574299B1 (en) | 2001-08-16 | 2003-06-03 | University Of Central Florida | Exact filtered back projection (FBP) algorithm for spiral computer tomography |
JP4282302B2 (ja) * | 2001-10-25 | 2009-06-17 | 株式会社東芝 | X線ct装置 |
US6763081B2 (en) * | 2002-10-02 | 2004-07-13 | Siemens Corporate Research, Inc. | Cone beam computed tomography imaging system and method providing efficient utilization of detector area |
US7024032B2 (en) * | 2002-10-31 | 2006-04-04 | Perceptron, Inc. | Method for assessing fit and alignment of a manufactured part |
WO2006051468A1 (en) * | 2004-11-15 | 2006-05-18 | Philips Intellectual Property & Standards Gmbh | Reconstruction method for computer tomograph and computer tomograph |
EP2073710B1 (en) * | 2006-09-29 | 2016-05-04 | Koninklijke Philips N.V. | Fly-by scanning for computed tomography |
JP2010513859A (ja) * | 2006-12-15 | 2010-04-30 | 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 | 検査領域内の対象物を撮像する撮像システム |
JP2009006133A (ja) * | 2007-05-31 | 2009-01-15 | Toshiba Corp | X線ct装置及びその制御方法 |
US7848479B1 (en) | 2007-06-29 | 2010-12-07 | University Of Central Florida Research Foundation, Inc. | Image reconstruction for a general circle-plus trajectory |
CN101861530A (zh) * | 2007-11-19 | 2010-10-13 | 皇家飞利浦电子股份有限公司 | 用于确定感兴趣区域的图像的成像装置、成像方法和计算机程序 |
JP4665019B2 (ja) * | 2008-08-18 | 2011-04-06 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
US9535186B2 (en) * | 2013-06-25 | 2017-01-03 | Analogic Corporation | Projection image generation via computed tomography system |
US9420976B2 (en) | 2014-03-19 | 2016-08-23 | General Electric Company | Systems and methods for optimized source collimation |
CN110974278B (zh) * | 2019-12-21 | 2022-02-11 | 电子科技大学 | 一种dsa锥束精确滤波反投影断层成像系统及成像方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2607749B2 (ja) * | 1990-11-01 | 1997-05-07 | 株式会社東芝 | X線ct装置 |
US5170439A (en) * | 1991-06-11 | 1992-12-08 | Picker International, Inc. | Cone beam reconstruction using combined circle and line orbits |
US5400255A (en) * | 1994-02-14 | 1995-03-21 | General Electric Company | Reconstruction of images from cone beam data |
-
1996
- 1996-12-05 US US08/761,051 patent/US5706325A/en not_active Expired - Lifetime
-
1997
- 1997-12-04 WO PCT/US1997/023142 patent/WO1998027415A2/en active Application Filing
- 1997-12-04 JP JP52789798A patent/JP4212118B2/ja not_active Expired - Fee Related
- 1997-12-04 EP EP97949822A patent/EP0906059A2/en not_active Ceased
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008289936A (ja) * | 2001-01-30 | 2008-12-04 | Toshiba Corp | X線ct装置 |
JP2011172967A (ja) * | 2001-01-30 | 2011-09-08 | Toshiba Corp | X線ct装置 |
JP2012254358A (ja) * | 2001-01-30 | 2012-12-27 | Toshiba Corp | X線ct装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0906059A2 (en) | 1999-04-07 |
JP4212118B2 (ja) | 2009-01-21 |
US5706325A (en) | 1998-01-06 |
WO1998027415A2 (en) | 1998-06-25 |
WO1998027415A3 (en) | 1999-01-21 |
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