DE213213T1 - Vorrichtung fuer roentgenstrahlentomographie. - Google Patents

Vorrichtung fuer roentgenstrahlentomographie.

Info

Publication number
DE213213T1
DE213213T1 DE198686901510T DE86901510T DE213213T1 DE 213213 T1 DE213213 T1 DE 213213T1 DE 198686901510 T DE198686901510 T DE 198686901510T DE 86901510 T DE86901510 T DE 86901510T DE 213213 T1 DE213213 T1 DE 213213T1
Authority
DE
Germany
Prior art keywords
ray
array
capacitors
detectors
ray detectors
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.)
Pending
Application number
DE198686901510T
Other languages
English (en)
Inventor
Ltd. Hideaki Yokogawa Medical Systems Uno
Ltd. Hirofumi Yokogawa Medical Systems Tokyo 190 Yanagita
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.)
GE Healthcare Japan Corp
Original Assignee
Yokogawa Medical Systems Ltd
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 Yokogawa Medical Systems Ltd filed Critical Yokogawa Medical Systems Ltd
Publication of DE213213T1 publication Critical patent/DE213213T1/de
Pending 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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. 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]
    • A61B6/032—Transmission computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/40—Imaging
    • G01N2223/419—Imaging computed tomograph

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • Pulmonology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • X-Ray Techniques (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Claims (1)

86 901 510.7-2203 Yokogawa Medical Systems, Ltd. Patentanspruch:
1. Computeraxialtomographie-Abtaster, umfassend
einen Röntgenstrahier zur kontinuierlichen Lieferung von Röntgenstrahlen in Form eines fächerartigen Strahlenbündeis,
ein Feld oder Array von Röntgen(strahlungs)detektoren mit Bezugs-Röntgendetektoren, auf die nicht durch ein Untersuchungsobjekt übertragene Röntgenstrahlen fallen, wobei das Array und der Röntgenstrahier auf gegenüberliegenden Seiten des Untersuchungsobjekts angeordnet sind,
einen Mechanismus zum Drehen des Röntgenstrahlers und des Arrays aus den Röntgendetektoren unter Aufrechterhaltung ihrer relativen Lagenbeziehung,
mehrere den Röntgendetektoren des Arrays entsprechend vorgesehene Kondensatoren, die durch die Ausganqsströme von den jeweils zugeordneten Röntgendetektoren aufladbar sind,
eine Wähleinheit zum Wählen der Kondensatoren der Reihe nach,
eine Einheit zum Messen der über den gewählten Kondensator entwickelten Spannung,
eine Rückstelleinheit zum Rückstellen der über den gewählten Kondensator entwickelten Spannung und
eine Steuereinheit zum Steuern der Wähleinheit und der Rückstelleinheit der Reihe nach in der Weise, daß in zyklischer oder periodischer Weise jeder Kondensator gewählt, entladen und nicht mehr gewählt wird, nachdem der vorherige Kondensator seinen Betriebszyklus beendet, wobei die Steuereinheit zwei Arten von Betriebszyklen zu ziemlich dicht nebeneinander liegenden Zeitpunkten einführt, von denen die eine der beiden Arten von Betriebszyklen den Kondensatoren, die mit den in der Nähe des
1 Zentrums des Röntgendetektor-Arrays angeordneten Röntgendetektoren verbunden sind, und die andere Art den mit den Bezugs-Röntgendetektoren verbundenen Kondensatoren zugeordnet sind.
DE198686901510T 1985-02-27 1986-02-26 Vorrichtung fuer roentgenstrahlentomographie. Pending DE213213T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60038249A JPS61196945A (ja) 1985-02-27 1985-02-27 Ｘ線断層撮影装置
PCT/JP1986/000094 WO1986005084A1 (en) 1985-02-27 1986-02-26 Apparatus for x-ray tomography

Publications (1)

Publication Number Publication Date
DE213213T1 true DE213213T1 (de) 1987-09-03

Family

ID=12520031

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8686901510T Expired - Fee Related DE3687193T2 (de) 1985-02-27 1986-02-26 Vorrichtung fuer roentgenstrahlentomographie.
DE198686901510T Pending DE213213T1 (de) 1985-02-27 1986-02-26 Vorrichtung fuer roentgenstrahlentomographie.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8686901510T Expired - Fee Related DE3687193T2 (de) 1985-02-27 1986-02-26 Vorrichtung fuer roentgenstrahlentomographie.

Country Status (6)

Country Link
US (1) US4769827A (de)
EP (1) EP0213213B1 (de)
JP (1) JPS61196945A (de)
KR (1) KR890001874B1 (de)
DE (2) DE3687193T2 (de)
WO (1) WO1986005084A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01119233A (ja) * 1987-10-30 1989-05-11 Yokogawa Medical Syst Ltd Ｘ線断層撮影装置
FR2626432B1 (fr) * 1988-01-25 1995-10-13 Commissariat Energie Atomique Appareil de tomographie a rayons x
JPH0299845A (ja) * 1988-10-06 1990-04-11 Yokogawa Medical Syst Ltd Ｘ線ｃｔのデータ収集装置
EP0367856B1 (de) * 1988-11-09 1993-02-03 Siemens Aktiengesellschaft Computer-Tomograph
EP0498213B1 (de) * 1991-02-07 1997-08-13 Kabushiki Kaisha Toshiba Röntgenstrahl-Computer-Tomograph mit Bilddatenerfassungsschaltung zur Ausführung von Hochgeschwindigkeits-Datenerfassung
JPH10509069A (ja) * 1994-11-22 1998-09-08 アナロジック コーポレーション 断層撮影イメージ・データの正規化
US5550886A (en) * 1994-11-22 1996-08-27 Analogic Corporation X-Ray focal spot movement compensation system
US6094469A (en) * 1998-10-21 2000-07-25 Analogic Corporation Computed tomography system with stable beam position
US6471400B1 (en) 2000-10-26 2002-10-29 Analogic Corporation Adaptive CT monitor correction system and method
GB2411093B (en) 2004-02-13 2007-10-24 Teraview Ltd Terahertz imaging system
GB2436744B (en) * 2004-02-13 2008-09-10 Tera View Ltd Terahertz imaging system
US7113120B1 (en) * 2004-07-19 2006-09-26 Analogic Corporation Charge transfer system and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041315A (en) * 1972-05-17 1977-08-09 E M I Limited Computerized tomography comprising laterally shifting detected beams within a rotated fan of radiation
DE2627433A1 (de) * 1976-06-18 1977-12-29 Siemens Ag Roentgenschichtgeraet zur herstellung von transversalschichtbildern
JPS5438789A (en) * 1977-09-02 1979-03-23 Hitachi Medical Corp Tomography
DE2831038C2 (de) * 1978-07-14 1982-07-01 Siemens AG, 1000 Berlin und 8000 München Strahlendiagnostikgerät für die Erzeugung von Schichtbildern
US4484340A (en) * 1981-12-09 1984-11-20 Yokogawa Hokushin Electric Corporation Multichannel current measuring apparatus for X-ray computerized tomograph
JPS59125547A (ja) * 1983-01-05 1984-07-19 横河電機株式会社 Ｘ線ｃｔ装置に使用する電流計測装置

Also Published As

Publication number Publication date
WO1986005084A1 (en) 1986-09-12
JPH0436698B2 (de) 1992-06-17
US4769827A (en) 1988-09-06
KR880700296A (ko) 1988-02-22
JPS61196945A (ja) 1986-09-01
KR890001874B1 (ko) 1989-05-29
EP0213213A1 (de) 1987-03-11
EP0213213B1 (de) 1992-12-02
DE3687193D1 (de) 1993-01-14
EP0213213A4 (de) 1988-05-03
DE3687193T2 (de) 1993-04-01

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