DE19545933C2 - X-ray diagnostic device with a recording unit for generating a radiographic image of an object on a display device - Google Patents

X-ray diagnostic device with a recording unit for generating a radiographic image of an object on a display device

Info

Publication number
DE19545933C2
DE19545933C2 DE1995145933 DE19545933A DE19545933C2 DE 19545933 C2 DE19545933 C2 DE 19545933C2 DE 1995145933 DE1995145933 DE 1995145933 DE 19545933 A DE19545933 A DE 19545933A DE 19545933 C2 DE19545933 C2 DE 19545933C2
Authority
DE
Germany
Prior art keywords
radiographic image
generating
adjustment
ray diagnostic
radiation
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.)
Expired - Fee Related
Application number
DE1995145933
Other languages
German (de)
Other versions
DE19545933A1 (en
Inventor
Joerg Haendle
Heinz Horbaschek
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Priority to DE1995145933 priority Critical patent/DE19545933C2/en
Publication of DE19545933A1 publication Critical patent/DE19545933A1/en
Application granted granted Critical
Publication of DE19545933C2 publication Critical patent/DE19545933C2/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/44Constructional features of the device for radiation diagnosis
    • A61B6/4476Constructional features of the device for radiation diagnosis related to servo controlled movement of the source unit

Description

DE-OS 21 41 676 is an X-ray image intensifier arrangement voltage known, which has an X-ray image intensifier, the sen image scale is electronically optically switchable. The X-ray image intensifier is for this purpose with electron optics provided a change in the magnification he leaves. This is done by switching the electrical Values of a power supply part for electron optics via a switching device. By pressing a button that Electron optics can act on the power supply part can be switched so that only a small section on the fluorescent screen of the X-ray image intensifier representable object area of a patient on the whole th area of the exit fluorescent screen of the X-ray image intensifier kers appears. To achieve that only that object the patient's area is illuminated, which is also effective appears, there is an automatic iris control the one corresponding to that made on keys or Choice of the input format the built in the tube hood Aperture closes so far that the patient's radiation is limited to the object scope shown. It is a Markers provided over the during the fluoroscopy the original format when a button is pressed distinctive markings in the television picture of a Monito res can be shown.

DE 33 30 552 A1 is an X-ray diagnostic system with a motorized adjustable patient bed, one motor-adjustable primary beam aperture and an image amplifier television chain known for image reproduction. The The display unit of the image intensifier television chain is a light handle interested in entering certain positions or one  assigned to the region on the display device in a memory. Control circuits for the motors of the are on the memory Patient storage and the primary radiation shield connected sen, which are designed so that the patient bed and the primary beam aperture according to the respective image field on the display device to which the light pen is aligned is set. So it can be of interest marked the region with the help of the light pen and the Pa patient deposit and then the primary radiation diaphragm are automatically adjusted so that the marked region in the center appears on the screen and fades in optimally det is so that an overexposure of the reproduced image is avoided.

The object of the invention is therefore an X-ray diagnostic advises to generate a radiograph of an object on a display device with an adjustable up acquisition unit and / or an adjustable storage device training so that after a first overview to investigate a correction or change in the position of the the object are checked relative to the recording unit can, without the need for a new radiation becomes.

The object is achieved by the subject of Claim 1 solved.

Advantage of the invention is that due to the inclusion unit and / or the storage device associated encoder a signal corresponding to an adjustment is generated because of this and the signals of the radiograph of the computing device corresponding to the adjustment Radiographic image calculated and on the display device is pictured. The radiation exposure of the examination object is reduced because a first radiograph of the Object with a low radiation dose can be obtained can. The exact positioning of the object then takes place by adjusting the recording unit and / or the storage device, with a passage corresponding to the adjustment calculated radiation image and displayed on the display device is provided. This can only be done with precise positioning for example, radiography to be used as the basis for a diagnosis image with the necessary radiation dose. The exact positioning of the object is done without a beam lung.

It is advantageous if both encoders for the X and the Y direction of a plane and, if necessary, an encoder for egg ne adjustment in a Z direction perpendicular to the plane are seen around the through corresponding to an adjustment to calculate the radiation pattern.

Further advantages and details of the invention emerge from the following description of an exemplary embodiment les based on the drawing in conjunction with the dependent claims chen.

In the figure, an X-ray diagnostic device for generating a radiographic image of an object on a display device 1 is shown. This X-ray diagnostic device has an adjustable recording unit consisting of a radiation transmitter 2 and an image intensifier 3 or a solid-state radiation wall, for example an aSi radiation converter, and an adjustable storage device 4 for an examination object. The receiving unit is mounted on a C-arm 5 , which is at least height-adjustable on a column 6 . The column 6 is on the bottom rails 7 ent long of the storage device 4 adjustable. The storage device 4 has a base 8 on which it is adjustable along its longitudinal axis, for example in the X direction, and its transverse axis, Y direction. For the adjustment of the storage device 4 in the X direction, a first encoder and for the adjustment in the Y direction, a second encoder 10 is provided. A third encoder 11 for detecting a height adjustment, Z direction, the receiving unit is hen between the column 6 and the C-arm 5 vorgese. The signals from the transmitters 9 , 10 , 11 are fed to a computer 12 which also has a memory 13 for a radiographic image obtained with the recording unit.

To create a radiographic image, the examination object is arranged on the storage device 4 and the area to be examined is assigned to the recording unit. By activating the radiation transmitter 2 , a radiation beam is generated which penetrates the examination object and strikes the image intensifier 3 as the radiation shadow of the examination object. The image intensifier 3 converts the received radiation shadow into electrical signals, which are supplied to the computing device 12 and calculates the image signals therefrom, which can be represented on the display device 1 as a transmission image. The image signals are preferably stored in the memory 13 , so that after the radiation has been switched off, the radiographic image still appears on the display device 1 . Since it is very likely that the examination object is not yet optimally positioned in relation to the recording unit with regard to the creation of a radiation image of a specific area, according to the invention at least one signal from the transmitter 9 , 10 , 11 of the computing device 12 is supplied, which results from the adjustment of the Recording unit and / or the storage device 4 results. On the basis of this signal, the computing device 12 calculates a transmission image corresponding to this adjustment, which is then displayed on the display device 1 . The signals corresponding to the adjustment of the transmitters 9 , 10 , 11 and the calculation of a radiographic image corresponding to this adjustment make it possible to position the examination object in relation to the recording unit without the need for radiation. Only when the examination object is optimally positioned is the recording unit activated in order to obtain a diagnosable radiographic image.

Likewise, a graphic overlay in the image can be shifted accordingly to the signals from the sensors 9 , 10 , 11 . If the recording unit is adjusted not only in one plane, for example the plane of the bearing device 4 , but also in a direction perpendicular to it, the Z direction, it is advantageous if the computing device 12 is based on the signal of the third transmitter 11 corresponding to the position a correspondingly enlarged or reduced radiographic image is calculated and displayed on the display device 1 .

Within the scope of the invention, further transmitters, for example for the distance between the radiation transmitter 2 and the image intensifier 3 and the detection of a tilt or other adjustment of the recording unit and / or the location device 4 , can also be provided, the signals of which are also provided by the computing device 12 for the Calculation of a radiographic image corresponding to a position supplied to the. The invention is applicable to further X-ray diagnostic devices.

In the context of the invention, the radiographic image can also have been calculated from a 3D data record which was previously obtained by appropriate radiation scanning of the examination object. Furthermore, it is possible to project a marking into the radiographic image, which can be controlled via an operator control (for example a joystick) and with actuators the control of the marking corresponding adjustment of the recording unit and / or the Lagerungsvor direction 4 takes place.

Claims (5)

1. X-ray diagnostic device for generating a radiographic image of an object on a display device ( 1 ),
with an adjustable receiving unit ( 2 , 3 ) and / or an adjustable storage device ( 4 ),
with at least one sensor ( 9 ; 10 ; 11 ) assigned to the receiving unit ( 2 , 3 ) and / or the bearing device ( 4 ) for generating at least one signal corresponding to an adjustment and
with a memory ( 13 ) for storing a first radiation image and with a computing device ( 12 ) assigned to the display device ( 1 ), to which the signals of the at least one transmitter ( 9 ; 10 ; 11 ) can be fed,
wherein the computing device ( 12 ) from the signals of the radiographic image and the at least one signal from the transmitter ( 9 ; 10 ; 11 ) calculates a second radiographic image corresponding to the position of the object to be examined relative to the recording unit after the adjustment, which is then on the display device ( 1 ) can be represented.
2. X-ray diagnostic device according to claim 1,
with a first encoder ( 9 ) for generating a signal corresponding to an adjustment in an X direction of a plane and
with a second transmitter ( 10 ) for generating a signal corresponding to an adjustment in a Y direction of the plane.
3. X-ray diagnostic device according to claim 1 or 2,
with a third transmitter ( 11 ) for generating a signal corresponding to an adjustment in a Z direction perpendicular to the plane,
wherein an enlarged or reduced radiographic image is calculated and displayed on the basis of the signal of the third transmitter ( 11 ).
4. X-ray diagnostic device according to one of claims 1 to 3, wherein when the radiation transmitter ( 2 ) is activated to emit radiation, a current radiographic image is stored.
5. X-ray diagnostic device according to one of claims 1 to 4, wherein the recording unit ( 2 , 3 ) has a large-area X-ray image intensifier ( 3 ) or a solid-state radiation converter as a radiation converter.
DE1995145933 1995-12-08 1995-12-08 X-ray diagnostic device with a recording unit for generating a radiographic image of an object on a display device Expired - Fee Related DE19545933C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995145933 DE19545933C2 (en) 1995-12-08 1995-12-08 X-ray diagnostic device with a recording unit for generating a radiographic image of an object on a display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995145933 DE19545933C2 (en) 1995-12-08 1995-12-08 X-ray diagnostic device with a recording unit for generating a radiographic image of an object on a display device

Publications (2)

Publication Number Publication Date
DE19545933A1 DE19545933A1 (en) 1997-06-12
DE19545933C2 true DE19545933C2 (en) 2001-01-25

Family

ID=7779621

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995145933 Expired - Fee Related DE19545933C2 (en) 1995-12-08 1995-12-08 X-ray diagnostic device with a recording unit for generating a radiographic image of an object on a display device

Country Status (1)

Country Link
DE (1) DE19545933C2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141676A1 (en) * 1971-08-19 1973-02-22 Siemens Ag Roentgenbildverstaerkeranordnung
DE3330552A1 (en) * 1983-08-24 1985-03-07 Siemens Ag Roentgendiagnostikanlage with a patient stock held and a fine shine visor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2141676A1 (en) * 1971-08-19 1973-02-22 Siemens Ag Roentgenbildverstaerkeranordnung
DE3330552A1 (en) * 1983-08-24 1985-03-07 Siemens Ag Roentgendiagnostikanlage with a patient stock held and a fine shine visor

Also Published As

Publication number Publication date
DE19545933A1 (en) 1997-06-12

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8120 Willingness to grant licenses paragraph 23
D2 Grant after examination
8364 No opposition during term of opposition
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20130702