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DE19613662A1 - X=ray diagnostic arrangement with solid state detectors - Google Patents

X=ray diagnostic arrangement with solid state detectors

Info

Publication number
DE19613662A1
DE19613662A1 DE19613662A DE19613662A DE19613662A1 DE 19613662 A1 DE19613662 A1 DE 19613662A1 DE 19613662 A DE19613662 A DE 19613662A DE 19613662 A DE19613662 A DE 19613662A DE 19613662 A1 DE19613662 A1 DE 19613662A1
Authority
DE
Germany
Prior art keywords
ray
images
image
ray diagnostic
image processing
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Withdrawn
Application number
DE19613662A
Other languages
German (de)
Inventor
Joachim Dipl Ing Alexander
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to DE19613662A priority Critical patent/DE19613662A1/en
Publication of DE19613662A1 publication Critical patent/DE19613662A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4233Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/30Transforming light or analogous information into electric information
    • H04N5/32Transforming X-rays
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05GX-RAY TECHNIQUE
    • H05G1/00X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08Electrical details
    • H05G1/26Measuring, controlling or protecting
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05GX-RAY TECHNIQUE
    • H05G1/00X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08Electrical details
    • H05G1/60Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography

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

Abstract

The X-ray diagnostic arrangement includes an image receiver, e.g. an X-ray film, an image amplifier-TV chain, and a single image amplifier. The single image amplifier is formed as a flat detector. Several image processors for generating individual X-ray images are switched in series with the image amplifier. A single monitor is provided for all of the image processors, and images are generated with different resolutions or different doses of X-radiation. Digital subtraction images can also be generated. The X-ray generator and the flat detector can be arranged in a C-arc or other known mechanical connection. The detector elements are made of amorphous silicon.

Description

Bei bekannten Röntgendiagnostikanlagen werden Röntgenbilder mit Hilfe unterschiedlicher bildgebender Systeme angefertigt. So ist es z. B. bekannt, ein Röntgengerät zur Anfertigung von Röntgenfilmaufnahmen und Durchleuchtungsbildern mit Hilfe einer Bildverstärker-Fernsehkette auszurüsten. Der Fernseh­ kette kann dabei eine Einrichtung zur Digitalisierung und An­ fertigung von Subtraktionsbildern zugeordnet sein. Für ver­ schiedene Betriebsarten sind also unterschiedliche bildge­ bende Systeme vorhanden.In known X-ray diagnostic systems, X-ray images are used made with the help of different imaging systems. So it is z. B. known an X-ray machine for the production of X-ray film and fluoroscopic images with the help to equip an image intensifier television chain. The television chain can be a facility for digitization and connection production of subtraction images. For ver Different operating modes are therefore different images systems exist.

Der Erfindung liegt die Aufgabe zugrunde, eine Röntgendia­ gnostikanlage so auszubilden, daß für unterschiedliche Be­ triebsarten, wie Röntgen-Subtraktionstechnik, Durchleuch­ tungsbilder mit niedriger Dosisleistung und Röntgenaufnahmen mit hoher Dosisleistung, nur ein einziges Bildaufnahmesystem erforderlich ist.The invention has for its object an X-ray slide training the gnostic system so that for different loading modes, such as X-ray subtraction technology, fluoroscopy with low dose rate and X-rays with high dose rate, only a single image acquisition system is required.

Diese Aufgabe ist erfindungsgemäß gelöst durch die Merkmale des Patentanspruchs 1. Die Erfindung geht davon aus, daß mit einem digitalen Flachdetektor, z. B. auf der Basis von a: Si, die erforderlichen unterschiedlichen Bildverarbeitungstechni­ ken realisiert werden können.According to the invention, this object is achieved by the features of claim 1. The invention assumes that with a digital flat panel detector, e.g. B. based on a: Si, the required different image processing technologies ken can be realized.

Weiterbildungen der Erfindung ergeben sich aus den Unteran­ sprüchen.Further developments of the invention result from the Unteran sayings.

Die Erfindung ist nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is based on one in the drawing illustrated embodiment explained in more detail.

In der Zeichnung ist eine Patientenliege 1 dargestellt, auf der ein Patient 2 liegt, der von der von einem Röntgenstrah­ ler 3 ausgehenden Röntgenstrahlung durchstrahlt wird. Die Röntgenstrahlung trifft auf einem Flachdetektor 4 auf, der z. B. aus einer Matrix von Detektorelementen auf der Basis von amorphem Silicium gebildet ist. Die Ausgangssignale des Flachdetektors 4 werden einer Bildverarbeitungseinheit 5 zu­ geführt, der mehrere weitere Bildverarbeitungseinheiten 6, 7, 8 nachgeschaltet sind. Die von den Bildverarbeitungseinheiten 6, 7, 8 erzeugten Röntgenbilder werden auf Monitoren 9, 10, 11 wiedergegeben. Die Bildverarbeitungseinheit 6 kann z. B. übliche Durchleuchtungsbilder mit geringer Strahlendosislei­ stung erzeugen, während die Bildverarbeitungseinheit 7 Rönt­ genaufnahmen mit hoher Auflösung bei hoher Dosisleistung er­ zeugen kann. Die Bildverarbeitungseinheit 8 kann zur Erzeu­ gung von digitalen Subtraktionsbildern ausgebildet sein, in­ dem in ihr zwei unterschiedliche Bilder des Patienten 2 von­ einander subtrahiert werden und das Subtraktionsbild auf dem Monitor 11 wiedergegeben wird.In the drawing, a patient couch 1 is shown on which a patient 2 lies, who is irradiated by the X-ray radiation emanating from an X-ray beam 3 . The X-ray radiation strikes a flat detector 4 which, for. B. is formed from a matrix of detector elements based on amorphous silicon. The output signals of the flat detector 4 are fed to an image processing unit 5 which is followed by a number of further image processing units 6 , 7 , 8 . The x-ray images generated by the image processing units 6 , 7 , 8 are reproduced on monitors 9 , 10 , 11 . The image processing unit 6 can e.g. B. generate conventional fluoroscopic images with a low radiation dose, while the image processing unit 7 X-ray recordings with high resolution at a high dose rate he can testify. The image processing unit 8 can be designed to generate digital subtraction images, in which two different images of the patient 2 are subtracted from one another and the subtraction image is displayed on the monitor 11 .

Anstelle von drei individuellen Monitoren 9, 10, 11 kann auch ein einziger Monitor 12 vorgesehen sein, auf dem wahlweise die von den Bildverarbeitungseinheiten 6, 7, 8 erzeugten Röntgenbilder wiedergegeben werden.Instead of three individual monitors 9 , 10 , 11 , a single monitor 12 can also be provided, on which the x-ray images generated by the image processing units 6 , 7 , 8 are optionally displayed.

Der Flachdetektor 4 kann Röntgenaufnahmen, die mit der Fil­ maufnahme vergleichbar sind, als auch Durchleuchtungsbilder entsprechend der Indirekttechnik mit einer Bildverstärker- Fernsehkette erzeugen. Die Bilddaten des Flachdetektors 4 werden digital ausgelesen und eignen sich damit auch in der geschilderten Weise für die digitale Subtraktionsangiogra­ phie.The flat detector 4 can generate X-ray images that are comparable to the film, as well as fluoroscopy images according to the indirect technology with an image intensifier television chain. The image data of the flat detector 4 are read digitally and are therefore also suitable in the manner described for digital subtraction angiography.

Das bei herkömmlichen Röntgendiagnostikanlagen übliche Ziel­ gerät zur Aufnahme von Filmkassetten oder alternativ dazu vorgesehene Magazineinrichtungen, die Bildverstärker-Fern­ sehkette und die dieser nachgeschaltete Digitalisierungsein­ richtung entfallen und werden durch den Flachdetektor 4 er­ setzt. The conventional target in conventional X-ray diagnostic equipment for recording film cassettes or alternatively provided magazine devices, the image intensifier television chain and the digitization device connected downstream are omitted and are set by the flat detector 4 .

Die Zuordnung des Röntgenstrahlers 3 zum Flachdetektor 4 kann in bekannter Weise durch einen C-Bogen, durch einen U-Bügel oder sonstige bekannte mechanische Verbindungen erfolgen, wie dies durch die strichpunktierte Linie 13 schematisch darge­ stellt ist. Es kann aber auch eine rechnergesteuerte Zuord­ nung vorgesehen sein.The assignment of the X-ray emitter 3 to the flat detector 4 can be carried out in a known manner by a C-arm, by a U-bracket or other known mechanical connections, as is shown schematically by the dash-dotted line 13. However, a computer-controlled assignment can also be provided.

Die Erfindung schafft eine universelle radiologische Röntgen­ diagnostikanlage mit einheitlicher Abbildungsgeometrie für alle Betriebstechniken.The invention creates a universal radiological x-ray diagnostic system with uniform imaging geometry for all operating techniques.

Claims (3)

1. Röntgendiagnostikanlage mit einem Röntgenstrahler (3) und einem Flachdetektor (4) als einzigem Strahlenempfänger zur Bilderzeugung, dem mehrere unterschiedliche Bildverarbei­ tungseinheiten (6, 7, 8) zur Erzeugung unterschiedlicher Röntgenbilder nachgeschaltet sind.1. X-ray diagnostic system with an X-ray emitter ( 3 ) and a flat detector ( 4 ) as the only radiation receiver for image generation, which is followed by several different image processing units ( 6 , 7 , 8 ) for generating different X-ray images. 2. Röntgendiagnostikanlage nach Anspruch 1, bei der die Bild­ verarbeitungseinheiten zur Erzeugung von Bildern mit unter­ schiedlichen Auflösungen bei unterschiedlichen Dosisleistun­ gen des Röntgenstrahlers (3) und/oder zur Erzeugung von di­ gitalen Subtraktionsbildern ausgebildet sind.2. X-ray diagnostic system according to claim 1, in which the image processing units are designed to generate images with different resolutions at different dose rates of the x-ray emitter ( 3 ) and / or to generate digital subtraction images. 3. Röntgendiagnostikanlage nach Anspruch 1 oder 2, bei der allen Bildverarbeitungseinheiten (6, 7, 8) ein einziger Monitor (12) zugeordnet ist.3. X-ray diagnostic system according to claim 1 or 2, in which a single monitor ( 12 ) is assigned to all image processing units ( 6 , 7 , 8 ).
DE19613662A 1996-04-04 1996-04-04 X=ray diagnostic arrangement with solid state detectors Withdrawn DE19613662A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19613662A DE19613662A1 (en) 1996-04-04 1996-04-04 X=ray diagnostic arrangement with solid state detectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19613662A DE19613662A1 (en) 1996-04-04 1996-04-04 X=ray diagnostic arrangement with solid state detectors

Publications (1)

Publication Number Publication Date
DE19613662A1 true DE19613662A1 (en) 1997-10-09

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DE19613662A Withdrawn DE19613662A1 (en) 1996-04-04 1996-04-04 X=ray diagnostic arrangement with solid state detectors

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DE (1) DE19613662A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030486A3 (en) * 1997-12-10 1999-08-12 Koninkl Philips Electronics Nv Forming an assembled image from successive x-ray images
DE10319305A1 (en) * 2003-04-29 2004-11-25 Siemens Ag Patient support table for use radiography or similar with a patient support surface in which a solid-state radiation detector of approximately the same size is integrated
DE102006037969A1 (en) * 2006-08-14 2008-02-28 Siemens Ag Method for x-ray imaging under application of subtraction technology, involves recording x-ray image of examination area by detector dose, where multiple other x-ray images of examination area are recorded by another detector dose

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420833A1 (en) * 1994-06-15 1995-12-21 Siemens Ag Real-time X=Ray television

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420833A1 (en) * 1994-06-15 1995-12-21 Siemens Ag Real-time X=Ray television

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030486A3 (en) * 1997-12-10 1999-08-12 Koninkl Philips Electronics Nv Forming an assembled image from successive x-ray images
US6215848B1 (en) 1997-12-10 2001-04-10 U.S. Philips Corporation Forming an assembled image from successive X-ray images
DE10319305A1 (en) * 2003-04-29 2004-11-25 Siemens Ag Patient support table for use radiography or similar with a patient support surface in which a solid-state radiation detector of approximately the same size is integrated
DE102006037969A1 (en) * 2006-08-14 2008-02-28 Siemens Ag Method for x-ray imaging under application of subtraction technology, involves recording x-ray image of examination area by detector dose, where multiple other x-ray images of examination area are recorded by another detector dose

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