JP2002330957A - コンピュータ断層撮影画像のヘリカル行ビュー重み付け - Google Patents
コンピュータ断層撮影画像のヘリカル行ビュー重み付けInfo
- Publication number
- JP2002330957A JP2002330957A JP2001400490A JP2001400490A JP2002330957A JP 2002330957 A JP2002330957 A JP 2002330957A JP 2001400490 A JP2001400490 A JP 2001400490A JP 2001400490 A JP2001400490 A JP 2001400490A JP 2002330957 A JP2002330957 A JP 2002330957A
- Authority
- JP
- Japan
- Prior art keywords
- imaging system
- helical
- data
- image
- view
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 claims abstract description 32
- 238000003384 imaging method Methods 0.000 claims abstract description 25
- 238000009499 grossing Methods 0.000 claims abstract description 14
- 238000013170 computed tomography imaging Methods 0.000 claims abstract description 9
- 238000002591 computed tomography Methods 0.000 claims description 21
- 230000005855 radiation Effects 0.000 claims description 16
- 238000012886 linear function Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 2
- 241000219745 Lupinus Species 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 7
- 238000012937 correction Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 102100033041 Carbonic anhydrase 13 Human genes 0.000 description 1
- 101000867860 Homo sapiens Carbonic anhydrase 13 Proteins 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4064—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
- A61B6/4085—Cone-beams
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/752275 | 2000-12-29 | ||
US09/752,275 US6418184B1 (en) | 2000-12-29 | 2000-12-29 | Helical rowwise view weighting of computed tomographic images |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002330957A true JP2002330957A (ja) | 2002-11-19 |
JP2002330957A5 JP2002330957A5 (US06418184-20020709-M00003.png) | 2005-07-21 |
Family
ID=25025626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001400490A Withdrawn JP2002330957A (ja) | 2000-12-29 | 2001-12-28 | コンピュータ断層撮影画像のヘリカル行ビュー重み付け |
Country Status (4)
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6490335B1 (en) * | 2001-11-21 | 2002-12-03 | Ge Medical Systems Global Technologies Company Llc | Helical segment image reconstruction |
US6654442B2 (en) * | 2002-03-29 | 2003-11-25 | Ge Medical Systems Global Technology Company, Llc | Methods and apparatus for weighting projection data |
US6600802B1 (en) | 2002-04-01 | 2003-07-29 | Ge Medical Systems Global Technology Company, Llc | Image space correction for multi-slice helical reconstruction with z-smoothing |
US6584165B1 (en) * | 2002-07-10 | 2003-06-24 | Ge Medical Systems Global Technology Company, Llc | Scan data correction view weighting of computed tomographic images |
JP4056922B2 (ja) * | 2003-04-21 | 2008-03-05 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 放射線計算断層画像装置 |
US7583777B2 (en) * | 2004-07-21 | 2009-09-01 | General Electric Company | Method and apparatus for 3D reconstruction of images |
JP5133690B2 (ja) * | 2004-10-08 | 2013-01-30 | 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 | ボクセルに依存する補間を用いる画像再構成 |
US7991242B2 (en) | 2005-05-11 | 2011-08-02 | Optosecurity Inc. | Apparatus, method and system for screening receptacles and persons, having image distortion correction functionality |
CA2608119A1 (en) | 2005-05-11 | 2006-11-16 | Optosecurity Inc. | Method and system for screening luggage items, cargo containers or persons |
US8364244B2 (en) * | 2005-11-23 | 2013-01-29 | General Electric Company | Methods and systems to facilitate reducing banding artifacts in images |
US7899232B2 (en) | 2006-05-11 | 2011-03-01 | Optosecurity Inc. | Method and apparatus for providing threat image projection (TIP) in a luggage screening system, and luggage screening system implementing same |
US8494210B2 (en) | 2007-03-30 | 2013-07-23 | Optosecurity Inc. | User interface for use in security screening providing image enhancement capabilities and apparatus for implementing same |
US7609802B2 (en) * | 2007-04-25 | 2009-10-27 | General Electric Company | Method and system for reconstructing image volumes from helical scan acquisitions |
KR102067367B1 (ko) | 2011-09-07 | 2020-02-11 | 라피스캔 시스템스, 인코포레이티드 | 적하목록 데이터를 이미징/검출 프로세싱에 통합시킨 x-선 검사 방법 |
JP2013153832A (ja) * | 2012-01-27 | 2013-08-15 | Toshiba Corp | X線ct装置 |
EP3764281A1 (en) | 2016-02-22 | 2021-01-13 | Rapiscan Systems, Inc. | Methods of identifying firearms in radiographic images |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6219441B1 (en) | 1993-06-22 | 2001-04-17 | General Electric Company | Reconstruction of images from three-dimensional cone beam data |
US5724037A (en) | 1995-05-23 | 1998-03-03 | Analog Devices, Inc. | Data acquisition system for computed tomography scanning and related applications |
JP2914891B2 (ja) | 1995-07-05 | 1999-07-05 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
DE19614223C1 (de) | 1996-04-10 | 1997-12-04 | Siemens Ag | Bildrekonstruktionsverfahren für Mehrzeilendetektor-Computertomographen im Spiralbetrieb |
US5848117A (en) | 1996-11-27 | 1998-12-08 | Analogic Corporation | Apparatus and method for computed tomography scanning using halfscan reconstruction with asymmetric detector system |
US5828718A (en) | 1996-11-27 | 1998-10-27 | Analogic Corporation | Method and apparatus for helical computed tomography scanning with asymmetric detector system |
US5946371A (en) | 1997-12-08 | 1999-08-31 | Analogic Corporation | Method and apparatus for volumetric computed tomography scanning with offset symmetric or asymmetric detector system |
US6134292A (en) * | 1998-07-13 | 2000-10-17 | General Electric Company | Methods and apparatus for reducing z-axis non-uniformity artifacts |
US6055291A (en) * | 1998-08-25 | 2000-04-25 | General Electric Company | Systems, methods and apparatus for reconstructing images |
US6285732B1 (en) | 1999-11-16 | 2001-09-04 | General Electric Company | Methods and apparatus for adaptive interpolation reduced view CT scan |
US6341154B1 (en) * | 2000-06-22 | 2002-01-22 | Ge Medical Systems Global Technology Company, Llc | Methods and apparatus for fast CT imaging helical weighting |
-
2000
- 2000-12-29 US US09/752,275 patent/US6418184B1/en not_active Expired - Fee Related
-
2001
- 2001-12-16 IL IL14712401A patent/IL147124A0/xx unknown
- 2001-12-28 DE DE10164353A patent/DE10164353A1/de not_active Withdrawn
- 2001-12-28 JP JP2001400490A patent/JP2002330957A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US6418184B1 (en) | 2002-07-09 |
DE10164353A1 (de) | 2002-08-22 |
IL147124A0 (en) | 2002-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041207 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20041207 |
|
A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20050829 |