WO2008132635A3 - X-ray beam z-axis positioning - Google Patents

X-ray beam z-axis positioning Download PDF

Info

Publication number
WO2008132635A3
WO2008132635A3 PCT/IB2008/051175 IB2008051175W WO2008132635A3 WO 2008132635 A3 WO2008132635 A3 WO 2008132635A3 IB 2008051175 W IB2008051175 W IB 2008051175W WO 2008132635 A3 WO2008132635 A3 WO 2008132635A3
Authority
WO
WIPO (PCT)
Prior art keywords
focal spot
longitudinal direction
ray source
along
collimator
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.)
Ceased
Application number
PCT/IB2008/051175
Other languages
French (fr)
Other versions
WO2008132635A2 (en
Inventor
Lester M Miller
Janardhan K Kamath
Randall P Luhta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to JP2010504923A priority Critical patent/JP5341066B2/en
Priority to US12/597,178 priority patent/US8331529B2/en
Priority to CN2008800131392A priority patent/CN101662987B/en
Priority to EP08751091.3A priority patent/EP2139397B1/en
Publication of WO2008132635A2 publication Critical patent/WO2008132635A2/en
Publication of WO2008132635A3 publication Critical patent/WO2008132635A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
    • 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
    • A61B6/40—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
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4488—Means for cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/153—Spot position control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/52—Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Toxicology (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • X-Ray Techniques (AREA)

Abstract

A medical imaging system includes an x-ray source (112) having a focal spot that emits radiation that traverses an examination region (108). The position of the focal spot along a longitudinal direction is a function of a temperature of one or more x-ray source components. The system further includes a detector (120) that detects the radiation and a collimator (116), disposed between the x-ray source (112) and the examination region (108), that collimates that radiation along the longitudinal direction. A focal spot position estimator (132) dynamically computes an estimated position of the focal spot along the longitudinal direction based on the temperature of one or more x-ray source components. A collimator positioner (128) positions the collimator (116) along the longitudinal direction based on the estimated focal spot position prior to performing a scan.
PCT/IB2008/051175 2007-04-25 2008-03-28 X-ray beam z-axis positioning Ceased WO2008132635A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2010504923A JP5341066B2 (en) 2007-04-25 2008-03-28 Z-axis positioning of X-ray beam
US12/597,178 US8331529B2 (en) 2007-04-25 2008-03-28 X-ray beam z-axis positioning
CN2008800131392A CN101662987B (en) 2007-04-25 2008-03-28 X-ray beam Z-axis positioning
EP08751091.3A EP2139397B1 (en) 2007-04-25 2008-03-28 X-ray beam z-axis positioning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91383107P 2007-04-25 2007-04-25
US60/913,831 2007-04-25

Publications (2)

Publication Number Publication Date
WO2008132635A2 WO2008132635A2 (en) 2008-11-06
WO2008132635A3 true WO2008132635A3 (en) 2008-12-24

Family

ID=39789693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/051175 Ceased WO2008132635A2 (en) 2007-04-25 2008-03-28 X-ray beam z-axis positioning

Country Status (5)

Country Link
US (1) US8331529B2 (en)
EP (1) EP2139397B1 (en)
JP (1) JP5341066B2 (en)
CN (1) CN101662987B (en)
WO (1) WO2008132635A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5916226B2 (en) * 2010-09-29 2016-05-11 株式会社日立メディコ X-ray imaging apparatus and X-ray focal position control method for X-ray imaging apparatus
DE102011083416A1 (en) 2011-09-26 2013-03-28 CT Imaging GmbH X-ray machine
CN103720484B (en) * 2012-10-12 2018-02-23 Ge医疗系统环球技术有限公司 Intervene the cooler-free cooling systems and method of detector
CN103565465B (en) * 2013-10-30 2016-03-30 沈阳东软医疗系统有限公司 A kind of modification method of CT mechanical coke point and device
JP6731046B2 (en) 2015-10-06 2020-07-29 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Device for determining spatially dependent X-ray flux degradation and photon spectrum changes
CN107095690B (en) 2017-05-31 2021-05-07 上海联影医疗科技股份有限公司 A device, system and method for tracking focal position of X light source
EP3478180A4 (en) 2017-06-10 2019-07-24 Shanghai United Imaging Healthcare Co., Ltd. METHOD AND SYSTEM FOR ADJUSTING FOCAL POINT POSITION
US10531850B2 (en) 2017-09-07 2020-01-14 General Electric Company Mobile X-ray imaging with detector docking within a spatially registered compartment
CN107928693B (en) * 2017-11-29 2020-12-11 上海联影医疗科技股份有限公司 Method and system for determining opening position of collimator for imaging equipment
CN107753054B (en) * 2017-12-04 2021-06-18 上海联影医疗科技股份有限公司 Image correction method, device, CT system and storage medium
EP3528274A1 (en) 2018-02-19 2019-08-21 Koninklijke Philips N.V. X-ray source and x-ray imaging apparatus
US11147528B2 (en) * 2019-08-16 2021-10-19 GE Precision Healthcare LLC Methods and systems for X-ray tube conditioning
EP4084038B1 (en) * 2021-04-27 2023-07-05 Siemens Healthcare GmbH Automated regulation of a position of an x-ray focus of an x-ray imaging system
US11864941B2 (en) * 2021-10-04 2024-01-09 GE Precision Healthcare LLC System and method for collimator screening in a computed tomography system
CN114528673B (en) * 2022-01-26 2025-03-25 苏州博思得电气有限公司 X-ray tube temperature measurement method, device, equipment and storage medium
DE102023211529B3 (en) 2023-11-20 2025-02-27 Siemens Healthineers Ag Method for operating an X-ray device, X-ray device, computer program and electronically readable data carrier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991189A (en) * 1990-04-16 1991-02-05 General Electric Company Collimation apparatus for x-ray beam correction
US5469429A (en) * 1993-05-21 1995-11-21 Kabushiki Kaisha Toshiba X-ray CT apparatus having focal spot position detection means for the X-ray tube and focal spot position adjusting means
US5566220A (en) * 1992-12-04 1996-10-15 Kabushiki Kaisha Toshiba X-ray computerized tomography apparatus
US5684855A (en) * 1995-02-16 1997-11-04 Kabushiki Kaisha Toshiba X-ray CT scanner
EP1078599A1 (en) * 1999-08-27 2001-02-28 General Electric Company Methods and apparatus for positioning a CT imaging x-ray beam
US6215844B1 (en) * 1998-08-06 2001-04-10 Kabushiki Kaisha Toshiba X-ray computed tomography apparatus
EP1121899A1 (en) * 2000-01-03 2001-08-08 GE Yokogawa Medical Systems Ltd. X-ray impinging position alignment method and x-ray tomographic imaging method and apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8704182U1 (en) * 1987-03-20 1987-07-09 Siemens AG, 1000 Berlin und 8000 München Computer tomography
JPH0638956A (en) * 1992-05-22 1994-02-15 Toshiba Corp X-ray ct apparatus
JPH11128217A (en) * 1997-10-29 1999-05-18 Shimadzu Corp X-ray imaging device
US6185275B1 (en) * 1998-08-25 2001-02-06 General Electric Company Systems and methods for correcting focal spot thermal drift
JP3249088B2 (en) * 1998-11-20 2002-01-21 ジーイー横河メディカルシステム株式会社 X-ray irradiation alignment method and X-ray tomographic imaging apparatus
JP2001346793A (en) * 2000-06-07 2001-12-18 Ge Yokogawa Medical Systems Ltd Subject positioning method and x-ray ct device
US6980623B2 (en) * 2003-10-29 2005-12-27 Ge Medical Systems Global Technology Company Llc Method and apparatus for z-axis tracking and collimation
US7286644B2 (en) * 2004-04-28 2007-10-23 Varian Medical Systems Technologies, Inc. Systems, methods and devices for x-ray device focal spot control

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991189A (en) * 1990-04-16 1991-02-05 General Electric Company Collimation apparatus for x-ray beam correction
US5566220A (en) * 1992-12-04 1996-10-15 Kabushiki Kaisha Toshiba X-ray computerized tomography apparatus
US5469429A (en) * 1993-05-21 1995-11-21 Kabushiki Kaisha Toshiba X-ray CT apparatus having focal spot position detection means for the X-ray tube and focal spot position adjusting means
US5684855A (en) * 1995-02-16 1997-11-04 Kabushiki Kaisha Toshiba X-ray CT scanner
US6215844B1 (en) * 1998-08-06 2001-04-10 Kabushiki Kaisha Toshiba X-ray computed tomography apparatus
EP1078599A1 (en) * 1999-08-27 2001-02-28 General Electric Company Methods and apparatus for positioning a CT imaging x-ray beam
EP1121899A1 (en) * 2000-01-03 2001-08-08 GE Yokogawa Medical Systems Ltd. X-ray impinging position alignment method and x-ray tomographic imaging method and apparatus

Also Published As

Publication number Publication date
US8331529B2 (en) 2012-12-11
CN101662987A (en) 2010-03-03
JP2010524619A (en) 2010-07-22
US20100119039A1 (en) 2010-05-13
EP2139397A2 (en) 2010-01-06
EP2139397B1 (en) 2016-01-13
CN101662987B (en) 2013-10-23
JP5341066B2 (en) 2013-11-13
WO2008132635A2 (en) 2008-11-06

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