WO2015063232A3 - Blendensystem für eine strahlenquelle sowie vorrichtung und verfahren zum aufnehmen eines projektionsbilds und zum bestimmen einer relativposition zwischen einer strahlenquelle und einem strahlendetektor - Google Patents

Blendensystem für eine strahlenquelle sowie vorrichtung und verfahren zum aufnehmen eines projektionsbilds und zum bestimmen einer relativposition zwischen einer strahlenquelle und einem strahlendetektor Download PDF

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Publication number
WO2015063232A3
WO2015063232A3 PCT/EP2014/073386 EP2014073386W WO2015063232A3 WO 2015063232 A3 WO2015063232 A3 WO 2015063232A3 EP 2014073386 W EP2014073386 W EP 2014073386W WO 2015063232 A3 WO2015063232 A3 WO 2015063232A3
Authority
WO
WIPO (PCT)
Prior art keywords
projection image
radiation source
diaphragm system
radiation
diaphragm
Prior art date
Application number
PCT/EP2014/073386
Other languages
English (en)
French (fr)
Other versions
WO2015063232A2 (de
Inventor
Eckart Uhlmann
Marc KÄSEBERG
Felix Fehlhaber
Erwin Keeve
Sebastian Engel
Fabian Stopp
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Charité - Universitätsmedizin Berlin
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 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Charité - Universitätsmedizin Berlin filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Publication of WO2015063232A2 publication Critical patent/WO2015063232A2/de
Publication of WO2015063232A3 publication Critical patent/WO2015063232A3/de

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers
    • 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
    • A61B6/06—Diaphragms
    • 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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/547—Control of apparatus or devices for radiation diagnosis involving tracking of position of the device or parts of the device
    • 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
    • A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
    • A61B6/582—Calibration
    • 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
    • A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
    • A61B6/587—Alignment of source unit to detector unit
    • 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
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4405—Constructional features of apparatus for radiation diagnosis the apparatus being movable or portable, e.g. handheld or mounted on a trolley
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4458—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit or the detector unit being attached to robotic arms
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4464—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit or the detector unit being mounted to ceiling

Abstract

Die vorliegende Erfindung betrifft ein Blendensystem (3) für eine Strahlenquelle (1) sowie eine Vorrichtung und ein Verfahren zum Aufnehmen eines Projektionsbilds (7) und zum Bestimmen einer Relativposition zwischen einer Strahlenquelle (1) und einem Strahlendetektor (2) aus dem Projektionsbild (7). Das Blendensystem (3) zum Erzeugen des Projektionsbilds (7) eines auf dem Strahlendetektor (2) abbildbaren Objekts (4) durch ein von der Strahlenquelle (1) ausgesandtes, das Blendensystem (3) durchlaufendes Strahlenbündel (5), wobei das Blendensystem (3) einen strahlenundurchlässigen Marker (20; insbesondere kann ein Blendenschatten als Marker verwendet werden) mit mindestens einer Referenzstruktur (19; insbesondere eine Blendenabschlusskante) aufweist, dadurch gekennzeichnet, dass der Marker (20) an dem Blendensystem (3) derart angeordnet ist, dass ein Zentralstrahl (6) des Strahlenbündels (5) das Blendensystem (3) ungehindert passiert und die Referenzstruktur (19) stets durch einen Schatten in dem Projektionsbild (7) des Objekts (4) sichtbar ist zum Bestimmen eines Kontrasts des Schattens der Referenzstruktur (19) in dem Projektionsbild (7), wobei der Kontrast des Schattens in dem Projektionsbild (7) durch eine maximale Absorption der Strahlen an der Referenzstruktur (19) maximiert ist.
PCT/EP2014/073386 2013-10-31 2014-10-30 Blendensystem für eine strahlenquelle sowie vorrichtung und verfahren zum aufnehmen eines projektionsbilds und zum bestimmen einer relativposition zwischen einer strahlenquelle und einem strahlendetektor WO2015063232A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013222209.2 2013-10-31
DE201310222209 DE102013222209A1 (de) 2013-10-31 2013-10-31 Blendensystem für eine Strahlenquelle sowie Vorrichtung und Verfahren zum Aufnehmen eines Projektionsbilds und zum Bestimmen einer Relativposition zwischen einer Strahlenquelle und einem Strahlendetektor

Publications (2)

Publication Number Publication Date
WO2015063232A2 WO2015063232A2 (de) 2015-05-07
WO2015063232A3 true WO2015063232A3 (de) 2015-06-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/073386 WO2015063232A2 (de) 2013-10-31 2014-10-30 Blendensystem für eine strahlenquelle sowie vorrichtung und verfahren zum aufnehmen eines projektionsbilds und zum bestimmen einer relativposition zwischen einer strahlenquelle und einem strahlendetektor

Country Status (2)

Country Link
DE (1) DE102013222209A1 (de)
WO (1) WO2015063232A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170093500A (ko) 2016-02-05 2017-08-16 주식회사바텍 엑스선 콜리메이터 및 이를 이용한 엑스선 영상 촬영 장치

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US3151245A (en) * 1961-11-21 1964-09-29 High Voltage Engineering Corp X-ray beam collimating apparatus
US4534052A (en) * 1982-04-02 1985-08-06 C.G.R. - Mev Block for partially limiting a radiation beam, and a collimator comprising such blocks
US4672212A (en) * 1985-02-28 1987-06-09 Instrument Ab Scanditronax Multi leaf collimator
US4868843A (en) * 1986-09-10 1989-09-19 Varian Associates, Inc. Multileaf collimator and compensator for radiotherapy machines
US5166531A (en) * 1991-08-05 1992-11-24 Varian Associates, Inc. Leaf-end configuration for multileaf collimator
DE19905823C1 (de) * 1999-02-12 2000-06-08 Deutsches Krebsforsch Kollimator zum Begrenzen eines Bündels energiereicher Strahlen
JP2002210026A (ja) * 2001-01-19 2002-07-30 Toshiba Corp 放射線治療装置と放射線の照射野設定用絞り装置

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US6379043B1 (en) * 1998-12-08 2002-04-30 U.S. Philips Corporation X-ray examination apparatus and method for generating distortion-free X-ray images
US6739751B2 (en) * 2001-04-10 2004-05-25 Ge Medical Systems Global Technology Company, Llc X-ray system alignment method and apparatus
DE10162256B4 (de) * 2001-12-18 2004-09-09 Siemens Ag Strahlenblende für ein Röntgengerät
DE102005005604B4 (de) * 2005-02-07 2008-04-03 Siemens Ag Blendenvorrichtung und Verfahren zur Eingrenzung eines Röntgenstrahlungsfelds auf eine definierte, bestrahlbare Abbildungsfläche, sowie Röntgeneinrichtung
US7488107B2 (en) 2005-08-18 2009-02-10 General Electric Company Method and apparatus to detect and correct alignment errors in x-ray systems used to generate 3D volumetric images

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151245A (en) * 1961-11-21 1964-09-29 High Voltage Engineering Corp X-ray beam collimating apparatus
US4534052A (en) * 1982-04-02 1985-08-06 C.G.R. - Mev Block for partially limiting a radiation beam, and a collimator comprising such blocks
US4672212A (en) * 1985-02-28 1987-06-09 Instrument Ab Scanditronax Multi leaf collimator
US4868843A (en) * 1986-09-10 1989-09-19 Varian Associates, Inc. Multileaf collimator and compensator for radiotherapy machines
US5166531A (en) * 1991-08-05 1992-11-24 Varian Associates, Inc. Leaf-end configuration for multileaf collimator
DE19905823C1 (de) * 1999-02-12 2000-06-08 Deutsches Krebsforsch Kollimator zum Begrenzen eines Bündels energiereicher Strahlen
JP2002210026A (ja) * 2001-01-19 2002-07-30 Toshiba Corp 放射線治療装置と放射線の照射野設定用絞り装置

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Also Published As

Publication number Publication date
WO2015063232A2 (de) 2015-05-07
DE102013222209A1 (de) 2015-04-30

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