KR101577564B1 - X-ray Systems and Methods with Medical Diagnostic Ruler. - Google Patents

X-ray Systems and Methods with Medical Diagnostic Ruler. Download PDF

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Publication number
KR101577564B1
KR101577564B1 KR1020150055603A KR20150055603A KR101577564B1 KR 101577564 B1 KR101577564 B1 KR 101577564B1 KR 1020150055603 A KR1020150055603 A KR 1020150055603A KR 20150055603 A KR20150055603 A KR 20150055603A KR 101577564 B1 KR101577564 B1 KR 101577564B1
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KR
South Korea
Prior art keywords
radiation
image
unit
photographing
radiographic
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KR1020150055603A
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Korean (ko)
Inventor
김정수
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주식회사 에스지헬스케어
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    • 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
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5217—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data extracting a diagnostic or physiological parameter from medical diagnostic data
    • 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
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0492—Positioning of patients; Tiltable beds or the like using markers or indicia for aiding patient positioning
    • 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
    • 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

Abstract

According to the present invention, a radiation photographing device embedded with a medical measurement ruler comprises: a radiation generator (100); a radiating receiving unit (410); an external recognition ruler (440) that a user uses to check a photographing target location of an examinee; an internal photographing ruler (450) which is a reference point of size comparison in a photographed radiation image and a comparison point during an auto-stitching work of a photographed result; an internal photographing ruler moving frame (460) including a driving unit; an internal photographing horizontal ruler (470) capable of attachment/detachment to/from the radiation receiving unit (410); an input/output unit (700) including a radiation photographing region input unit (720); an operation unit (900) including a radiation photographing region calculating unit (910) and an image processing unit (920); a control unit (800) which operates and controls the radiation generator (100), the radiation receiving unit (410), and a radiation receiving unit module (400); and an image processing unit (920) which combines images by an auto-stitching function.

Description

TECHNICAL FIELD [0001] The present invention relates to a radiographic apparatus having a medical measurement device and a method thereof.

The present invention relates to a digital radiography system and a method thereof using a radiation receiver module having a medical measurement device, and more particularly, to a digital radiography system and a method thereof, The receiver is provided with an easy-to-use imaging device and method for using the auto-stitching function in a region where imaging is difficult at one time, and more particularly, By embedding a ruler in a radiation receiving module, it is possible to photograph the image by setting the shooting range on the basis of an absolute position and also to easily implement the function based on the absolute position even when implementing the auto-stitching function from the acquired image The present invention relates to a configuration of a radiographic apparatus and a method of using the same.

In general, clinical diagnosis is very important in medical practice, and non-invasive medical imaging methods using radiography are used as the most representative clinical diagnostic methods.

Especially, full spine x-ray is a typical method to confirm scoliosis. It can judge scoliosis using Cobb method which measures the angle of scoliosis through an entire vertebral x-ray image.

In analogue radiology equipment using traditional film, imaging can be done at once with large 14 "x 36" cassettes and films for the entire vertebral X-ray, and multiple detectors Detector) is connected to the system to acquire X-ray images of all vertebrae in one shot.

However, this is not a generalized phenomenon due to the problem of physically overcoming the connection between the detector and detector, and the price problem. Therefore, in the acquisition of the entire vertebral x-ray image using digital radiography, A technique of completing a plurality of x-ray images into one image by using an auto-stitching function is mainly used, and in particular, feature-based registration, Landmark-based registration, and plain image-similarity measures.

The feature point-based registration method is difficult to use in real digital radiography equipment due to the problem that the subject should not move during several shots for auto-stitching.

In the reference point-based registration method, a mechanism called a stitching stand or a stitching trolley including a large acrylic plate and a ruler is used for the reference point. In this method, a separate stand must be installed at any time The off-set and the like in the mobile installation may be changed. Therefore, there is a disadvantage that it is difficult to automate operations such as the setting of the photographing area and the like during the radiography, due to the necessity of additional management.

The image similarity measurement method is a comparison method from the radiation image itself, and it requires a variety of algorithms according to the image quality or the object, so that the effort and time required for development are large, but there is no guarantee that it is surely applied to all subjects at the final application stage .

Meanwhile, there are three types of methods for controlling the motion of the radiation generator in the course of radiography, such as the method of moving the radiation generator vertically according to the movement of the radiation receiver, the height of the radiation generator A method in which only the direction of the radiation generator is rotated in accordance with the movement of the radiation receiving unit without any change and finally the method of moving the slit or the like causes the radiation generator to be emitted toward the entire spine x- Thereby allowing the imaging of the cervical vertebra, the thoracic vertebra, the lumbar vertebrae, etc. to be sequentially performed.

Also, in the method of moving and imaging the radiation generator as described above, various shooting methods such as a method of manually operating a human hand, a method of automatically moving the robot, and a method of automatically moving the robot when an area is set according to a program are used.

In the domestic prior art 10-1431781 x-ray imaging apparatus and its control method, particularly, in the photographing of the image for auto-stitching as described above, the subject image is photographed by the camera and is provided to the examiner. When the divided shooting area is designated while looking directly, the system is configured to automatically control the radiation generating unit to separately shoot an image and perform auto-stitching.

Particularly, in the above-mentioned prior art, in the conventional imaging method for auto-stitching, the user increases the work fatigue and the shooting time which occur in the process of directly designating the divided shooting region by moving the radiation receiving portion and the radiation generator, Difficulty in fine adjustment, and the like, and proposes a device that can be automatically controlled by inputting a shooting region while viewing a video as a solution to the problem.

However, in addition to the increase in cost due to additional devices such as a camera and an input unit, a calibration operation for eliminating an error between an imaging region specified by an image acquired by a camera and an actual X- And the effort is getting bigger.

Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art and to minimize the cost and effort to be input, and it is an object of the present invention to provide a digital radiographic apparatus, And to provide a simple method for setting a divided shooting area.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art and to minimize the cost and effort to be put in. The object of the present invention is to provide a digital radiography system, It is possible to easily recognize the reference point and provide an inexpensive and effective method for setting the entire shooting area and the divided shooting area.

According to an aspect of the present invention, there is provided a radiotherapy apparatus comprising: a radiation generator (100) for radiographing a subject by generating and irradiating radiation;

A radiation receiver 410 for receiving the radiation transmitted through the subject;

A radiation receiving module 400 including the radiation receiving unit, the medical measurement unit, and the associated mechanical unit;

A controller 800 for controlling and controlling the radiation generator 100, the radiation receiver 410, and the radiation receiver module 400;

An input / output unit 700 for inputting photographing information and outputting a radiation image;

And an operation unit 900 for calculating a radiographic region or processing the obtained radiological image.

The radiation receiving module 400 includes a radiation receiving unit 410, an external recognizing person 440, an internal photographing person 450, and an internal photographing person 470. As shown in FIG.

The input / output unit 720 may receive the radiation imaging region or conditions and transmit the radiation image to the operation unit or the control unit, or may output the finally received radiation image in the operation unit.

The controller 800 can appropriately control and control the radiation generator 100, the radiation receiver module 400, and the radiation receiver 410 to appropriately perform the radiation imaging region and conditions.

The arithmetic unit 900 may calculate a radiographic region and transmit the radiographic image to a control unit or may process the acquired radiographic image and transmit the processed radiation image to an output unit.

At this time, the external recognition person 440 uses a material which does not appear in the radiological image such as acrylic and does not affect the inside photographing person 450. The internal photographing person 450 can be moved so as not to be included in the photographing, And is manufactured using a material.

The radiation generator 100 and the radiation receiver module 400 may be moved in a state where the position of the radiation receiver 410 inside the radiation receiver module 400 is fixed to the uppermost position for general radiography, So that the preparation for radiography is completed.

According to another embodiment of the present invention, in order to photograph a lower part of the human body such as a knee, a calf or an ankle, the radiation receiver module 400 is moved and the radiation receiver 410 inside the radiation receiver module 400 is further moved The preparation for radiography is completed.

According to another embodiment of the present invention, in order to radiograph the entire vertebrae, the radiation receiver module 400 is fixed at a position suitable for the front vertebrae radiography, and the radiation receiver 410 inside the radiation receiver module 400 receives the initial The radiation receiving section 410 is moved to an appropriate position so that the radiation receiving section 410 overlaps a part of the area and is photographed by the radiation receiving section 410. [ .

The radiation imaging apparatus and its method having the above-described configuration and function according to the present invention can be applied not only to the imaging form and posture required by the conventional general radiography equipment, but also to the whole spine x- It is very easy to define and input the imaging area in the radiography which requires the auto-stitching function. It is possible to intuitively check the size of the result of the internal organs of the image using the medical measuring device, The image can be synthesized with the auto-stitching function intuitively and accurately.

FIG. 1 is a diagram illustrating an example of a configuration of a radiography apparatus using a radiation receiving module 400 having a medical measurement device according to an embodiment of the present invention.
FIG. 2 is another example of radiography using a radiation receiver module 400 having a medical measurement device according to an embodiment of the present invention.
FIG. 3 is a block diagram illustrating a radiation receiver module 400, a radiation receiver support 510, a radiation receiver support frame 500, a radiation generator 100, a radiation generator support 210 ), A radiation generator supporting frame 200, and a configuration using the same.
FIG. 4 is a view illustrating a positional change of the radiation generator 100 and the radiation receiver 410 in the radiation image acquisition for auto-stitching according to an embodiment of the present invention.
5 is a block diagram of a radiation receiver module 400 incorporating a medical measurement device according to an embodiment of the present invention. In the radiation receiver module 410, Up and down. Fig.
6 is an exemplary view showing the basic positions of the external recognizer 440 and the internal photographer 450 in moving the radiation receiver 410 inside the radiation receiver module 400 as described above.
7 is an exemplary view showing a state in which the internal photographing person 450 is visible or invisible in the radiation receiving unit 410 according to the need.
8 is an exemplary view showing a state in which the inner photographing horizontals 470 are made visible or invisible by the radiation receiving unit 410. FIG.
9 is an exemplary view of a radiographic apparatus using a radiation receiver module 400 incorporating a medical measurement device according to another embodiment of the present invention.
FIG. 10 is a block diagram of input, output, control, and the like of a radiography apparatus incorporating a medical measurement device according to an embodiment of the present invention.

The terms or words used in the present specification and claims are intended to mean that the inventive concept of the present invention is in accordance with the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain its invention in the best way As well as the concept.

When an element is referred to as " including " an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Furthermore, the term " part " or the like described in the specification means a unit for processing at least one function or operation, which may be implemented by hardware or software, or a combination of hardware and software.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a radiographic apparatus and method according to the present invention will be described in detail with reference to embodiments thereof.

FIG. 1 illustrates a radiation imaging apparatus using a radiation receiving module 400 having a medical measurement device according to an embodiment of the present invention.

As shown in FIG. 1, the radiographic apparatus according to an embodiment of the present invention includes:

A radiation generator (100) connected to the generator to generate a radiation by colliding the cathode and the electron;

A radiation generator support 210 connecting the radiation generator 100 and the radiation generator support frame 200;

A radiation generator support frame 200 capable of moving the radiation generator 100 and the radiation generator support 210 up and down;

A radiation generator support frame rail 300 for supporting the radiation generator support frame 200 on the floor and changing the distance SID between the radiation generator 100 and the radiation receiver 410 through horizontal movement;

A radiation receiver module 400 including a medical measurement device and a radiation receiver 410;

A radiation receiver support frame 500 for vertically moving the radiation receiver module 400;

And a radiation receiver support frame pedestal 600 for fixing the radiation receiver support frame 500 to the floor surface.

FIG. 2 illustrates a radiographic apparatus according to an embodiment of the present invention. After the radiation receiver module 400 moves to the lowermost position, the radiation receiver 410 inside the radiation receiver module 400 also moves to the lowermost position. The radiation generator 100 is moved to the lower end together with the motion and is configured to take an image of the lower part of the human body such as an ankle, a shin, and a knee.

FIG. 3 illustrates a portion of a radiographic apparatus according to an embodiment of the present invention. The radiation receiver support frame 510 supports a radiation receiver module 510 to connect and support the radiation receiver module 400, The radiation generator support 210 connecting and supporting the radiation generator 200 and the radiation generator 100 can be moved along the guide grooves 530 and 230 by the screws 520 and 220 electronically driven and controlled by the motor And it is characterized by being able to construct a fully automated system by interlocking and controlling the up and down movement of each other.

FIG. 4 illustrates a positional change of the radiation generator 100 and the radiation receiver 410 in the radiation image acquisition for auto-stitching according to an exemplary embodiment of the present invention. Referring to FIG. 4, When the moving position and the number of times of the radiation receiving unit 410 and the number of times of photographing are determined, the radiation generator 100 is synchronized with the movement of the radiation receiving unit 410, And image acquisition for stitching is possible.

5 illustrates the up and down movement of the radiation receiver 410 in the radiation receiver module 400 according to an embodiment of the present invention. The LM guide 420 is disposed on the left and right of the LM guide 420, The slider 430 is electronically driven and controlled to move the radiation receiving part 410 up and down to cope with a large number of postures required for general radiography.

FIG. 6 illustrates a radiation receiver module 400 incorporating a medical measurement device according to an embodiment of the present invention. The external recognition device 440, which is made of a material that does not appear in the radiation image such as acryl, An internal photographer 450, which is located inside the radiation receiver module 400 and is manufactured using a material appearing in a lead radiation image, is used to confirm an accurate photographing position according to a part to be photographed by a user such as a radiologist, Is a reference point for intuitively comparing the size of internal organs and the like displayed on the result of radiographic imaging without any additional measurement, but also makes it possible to easily perform auto-stitching of the photographed result in an X- And is a comparison point.

At this time, the user confirms the position value of the part to be photographed by the external recognition person 440 and inputs the position value to the system. In the system, based on the position value, the user places the radiation receiving part 410 inside the radiation receiving part module 400 It is possible to radiograph the radiographic image by shifting the area by an appropriate value so as to overlay the area so that the input of the radiographing area and the radiographing process using the radiographing area can be simplified and convenient.

FIG. 7 illustrates a radiation receiver module 400 incorporating a medical measurement device according to an embodiment of the present invention. The medical measurement device includes an external recognition device 440, an internal photographer 450, (470), and the outside person 440 and the inside photographer 450 have separate characters on the left and right sides.

In this case, the external recognition person 440 is externally visible to the user, and is fixed to the radiation receiving module 400. The internal photographing person 450 is installed inside the radiation receiving module 400, And is located inside the frame 460 and can be moved outwardly so as not to appear on the radiological image if it is not desired to be displayed on the radiological image.

At this time, the left and right movement of the internal photographing member 450 can be electronically controlled by using a motor and a driving unit.

FIG. 8 illustrates movement of the inner photographing horizontals 470 in the radiation receiving module 400 according to an embodiment of the present invention. When the horizontal photographing horizontals 470 are not shown in the radiographic image, Thereby making it impossible to appear in the radiographic image.

At this time, the upward and downward movements of the inner photographing horizontals 470 are realized by attaching and detaching the uppermost part of the radiation receiving part 400 moving up and down as required.

9 is a diagram illustrating a radiation imaging apparatus according to another embodiment of the present invention. The radiation receiving section module 400 incorporating a medical measurement device is the same as that of the corresponding portion, but the configuration of the radiation generator has a radiation generator ceiling Shaped support member 240. [0031] As shown in FIG.

FIG. 10 is a block diagram of input, output, control, and the like of a radiography apparatus incorporating a medical measurement device according to an embodiment of the present invention. In the following detailed description, the present invention will be described with reference to specific numerical values.

In the case of radiographing an entire vertebral X-ray or the like using a radiography apparatus incorporating a medical measurement device according to the present invention, an inspector who is a user inputs radiographic conditions such as a tube voltage and a tube current in consideration of a test site and characteristics of the examinee And an external recognition person 440 outside the radiation receiving module 400, and it is assumed that this range is from 10 to 100.

The entire radiographing area and the divided radiographing area are defined by the radiographing area calculating unit. In this case, the entire radiographing area is 10 to 100, and the partial radiographing area is divided into 10 to 45, 37.5 to 72.5, Lt; / RTI >

The radiographic conditions and the photographing area information are transferred to the controller 800 to control the movement of the radiation generator 100, the radiation receiver 410, and the radiation receiver module 400. For example, in the above case, after the radiation receiver module 400, the radiation receiver 410, and the radiation generator 100 are set so as to be ready to take the first to fifth imaging regions 10 to 45 , The first radiation image is obtained by irradiating the radiation from the radiation generator according to the user's permission. The radiation receiver 410 and the radiation generator 100 are controlled to be synchronized to move to the imaging position to photograph the second imaging area 37.5 to 72.5, To acquire a second radiation image. Finally, for the third imaging area (65 to 100), the third radiographic image is obtained through the same movement and imaging.

The reference point check unit 921 receives a reference image of a reference point for accurately combining overlapping areas of three images based on the value of the internal photographer 450 displayed on the left and right, And the image synthesizing unit 922 synthesizes the three radiation images into a combined radiation image based on the synthesized radiation image, and outputs the synthesized radiation image to the radiation image output unit 730 in a designated manner.

The radiation generator 100, the radiation generator support frame 200, the radiation generator support 210, the radiation generator ceiling support 240 described in FIGS. 1, 2, 3, 4, 5, The radiation generator support frame rail 300, the radiation receiver support frame 500, the radiation receiver support frame 510, the radiation receiver support frame support 600, the LM guide 420, the LM slider 430, The present invention should not be construed as limited use of the present invention in order to provide an understanding of the use of the radiation receiver module 400 in accordance with the present invention.

It will be appreciated by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is to be understood, therefore, that the embodiments described above are to be considered in all respects as illustrative and not restrictive.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: radiation generator
200: radiation generator support frame
210: Radiation generator support
220: Radiation generator support frame screw
230: Radiation generator support frame guide groove
240: Radiation generator ceiling mount
300: a radiation generator support frame rail
400: Radiation receiver module
410: Radiation receiver
420: LM guides (420a and 420b are the left and right modules on the front surface, respectively)
430: LM slider (430a and 430b are the left and right modules on the front surface, respectively)
440: external recognition device (440a and 440b are left and right modules from the front, respectively)
450: an internal photographing person (450a and 450b are respectively left and right modules from the front)
460: an internal photographer moving frame (460a and 460b are left and right modules on the front surface, respectively)
470: horizontal photographing for internal photographing
500: Radiation receiver support frame
510: Radiation receiver support
520: Radiation receiver support frame screw
530: Radiation receiver support frame guide groove
600: Radiation receiver support frame base
700: input / output section
710: radiographic condition input unit
720: radiography area input part
730: Radiation image output unit
800:
810: Radiation generator moving control unit
820: radiation generator operation control unit
830: internal photographing person movement control unit
840: Horizontal movement control section for internal photographing
850: Radiation receiver module movement controller
860: Radiation receiver
870: radiation receiver section operation control section
900:
910: Radiographic region calculation unit
920:
921: Reference point check section
922:

Claims (3)

A radiation generator (100) for irradiating the subject to perform x-ray imaging of the subject;
A radiation receiver 410 for converting the image of the object transmitted through the radiation into a digital image and transmitting the digital image;
An external recognizer 440 used when the user confirms the photographing target position of the examinee;
An internal photographing member 450 which becomes a reference point of size comparison in the photographed radiographic image and serves as a comparison point in the auto-stitching operation of the photographing result;
An internal photographer moving frame 460 including a driving unit for displaying or not displaying an internal photographing person in a radiographic image as needed;
An internal photographing horizon 470 which is a reference point for comparing the horizontal size of the photographed radiographic image and is detachable to the radiation receiving unit 410 so as not to be displayed or displayed on the radiographic image;
An input / output unit 700 configured to include a radiation imaging area input unit 720 through which an examiner can recognize and input a photographing position of a subject;
An operation unit 900 configured to include a radiation imaging area calculation unit 910 and an image processing unit 920 for calculating a radiation segmented imaging area;
A control unit 800 for operating and controlling the radiation generator 100, the radiation receiver 410, and the radiation receiver module 400 to obtain a necessary radiation image;
And an image processing unit 920 that receives the radiation image acquired by the radiation receiving unit 410 and calculates a reference point and synthesizes the image by an auto-stitching function based on the reference point, A radiographic apparatus incorporating a medical measurement device characterized in that it is capable of coping with radiography that requires auto-stitching such as radiography.
The method according to claim 1,
The radiation imaging region calculation unit 910
The radiographic image forming apparatus includes a radiation generator 100 and a radiation receiver 410 for determining the divided radiographic areas in consideration of the entire radiographing area set by the user, the size of the radiation receiving unit 410 and the minimum overlapping area necessary for image synthesis, And a position of the second measuring unit is determined.
The method according to claim 1,
The image processing unit 920
A reference point confirmation unit 921 for calculating reference points of the individual images based on the values displayed in the radiographic images of the internal radiographing image 450 displayed on the left and right of the radiographic image and the values instructed to be photographed by the radiographing area calculation unit 910, Wow;
And an image synthesis unit (922) for synthesizing the individual images based on the reference point and synthesizing the individual images into one radiation image.
KR1020150055603A 2015-04-21 2015-04-21 X-ray Systems and Methods with Medical Diagnostic Ruler. KR101577564B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110859639A (en) * 2018-08-28 2020-03-06 西门子医疗有限公司 X-ray device, method for operating an X-ray device, computer program and data carrier
JPWO2019107318A1 (en) * 2017-11-28 2020-11-26 キヤノンメディカルシステムズ株式会社 X-ray diagnostic device and X-ray tube holding device
WO2021141307A1 (en) * 2020-01-08 2021-07-15 최홍희 Medical multipurpose laser pointing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009233159A (en) * 2008-03-27 2009-10-15 Fujifilm Corp Radiological diagnostic apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009233159A (en) * 2008-03-27 2009-10-15 Fujifilm Corp Radiological diagnostic apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2019107318A1 (en) * 2017-11-28 2020-11-26 キヤノンメディカルシステムズ株式会社 X-ray diagnostic device and X-ray tube holding device
CN110859639A (en) * 2018-08-28 2020-03-06 西门子医疗有限公司 X-ray device, method for operating an X-ray device, computer program and data carrier
CN110859639B (en) * 2018-08-28 2023-11-24 西门子医疗有限公司 X-ray device, method for operating an X-ray device, computer program and data carrier
WO2021141307A1 (en) * 2020-01-08 2021-07-15 최홍희 Medical multipurpose laser pointing device

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