Method and system for controlling an X-ray projection imaging device

Patent metadata

Field	Value
Publication number	US-11116468-B2
Application number	US-201916654176-A
Country	US
Kind code	B2
Filing date	Oct 16, 2019
Priority date	Oct 22, 2018
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A method for controlling an X-ray projection imaging device includes applying preferences for a serial radiography image acquisition to the X-ray projection imaging device. The method further includes executing the serial radiography image acquisition with the X-ray projection imaging device; recording data frames at different times during the serial radiography image acquisition; applying a trigger signal to the X-ray projection imaging device during the serial radiography image acquisition; and generating a snapshot image from a subset of the data frames, wherein the subset is chosen from the data frames recorded based on the trigger signal. A related system, a related control unit and a related X-ray projection imaging system are also disclosed.

First claim

What is claimed is:

1. A method for controlling an X-ray projection imaging device, comprising:
applying preferences for a serial radiography image acquisition to the X-ray projection imaging device;
executing the serial radiography image acquisition with the X-ray projection imaging device;
recording data frames at different times during the serial radiography image acquisition;
applying a trigger signal to the X-ray projection imaging device during the serial radiography image acquisition; and
generating a snapshot image from a subset of the data frames, wherein the subset is chosen from the data frames recorded based on the trigger signal.

2. A method of claim 1 , wherein the serial radiography image acquisition is a fluoroscopy image acquisition.

3. The method of claim 1 , wherein in the generating of the snapshot image, the data frames are combined by using an individual weighting coefficient for each data frame of the data frames.

4. The method of claim 1 , wherein a group of the data frames recorded before the trigger signal and a group of the data frames recorded after the trigger signal are used in the generating of the snapshot image.

5. The method of claim 1 , after a trigger signal is applied and at least for the time where the data frames are recorded for generating of the snapshot image, at least one of:
an image receptor dose per data frame is adapted,
a framerate is increased, and
an influence of different regions of the data frames is adapted to a final snapshot image,

wherein the X-ray projection imaging device is configured to stay in a mode for serial radiography image acquisition.

6. The method of claim 1 , wherein during or after the generating of the snapshot image, at least one of:
intermediate images constructed in the generating are displayed,
the snapshot image generated is displayed, and
original data frames are displayed as images.

7. The method of claim 1 , wherein the trigger signal is generated at least one of manually, automatically based on defined parameters, and automatically based on detected content in a data frame.

8. The method of claim 1 , wherein the generating of the snapshot image is finalized at least one of:
after a number of data frames,
by user interaction, and
automatically based on detected content in a data frame.

9. The method of claim 1 , wherein in the data frames used for generating the snapshot image, image-structures are identified being images of a same real object, the image structures each being registered.

10. A system for controlling an X-ray projection imaging device, comprising:
a data interface, designed to apply preferences for a serial radiography image acquisition to the X-ray projection imaging device;
a second data interface, designed to start an execution of a serial radiography image acquisition with the X-ray projection imaging device;
a third data interface, designed to receive a number of data frames recorded at different times during the serial radiography image acquisition;
a fourth data interface, designed to apply a trigger signal to the X-ray projection imaging device during the serial radiography image acquisition; and
an image-generation unit, designed to generate a snapshot image from a subset of the data frames, wherein the subset being chosen from the data frames recorded based on the trigger signal.

11. The system of claim 10 , wherein the data interfaces and the image-generation unit of the system are part of a data-network, the data network and a x-ray imaging device, configured to provide the data frames, being in data-communication, wherein the data network comprises at least one of parts of the internet and a cloud-based computing system.

12. A control unit for controlling an X-ray projection imaging device comprising the system of claim 10 .

13. An X-ray projection imaging system, comprising:
a X-ray projection imaging device; and
the control unit of claim 12 .

14. A non-transitory computer program product comprising a computer program, directly loadable into a system or a control unit for an x-ray projection imaging device, including program elements for performing the method of claim 1 when the computer program is executed by the system or the control unit.

15. A non-transitory computer-readable medium storing program elements, readable and executable by a computer unit to perform the method of claim 1 when the program elements are executed by the computer unit.

16. A control unit for controlling an X-ray projection imaging device comprising the system of claim 11 .

17. The X-ray projection imaging system of claim 13 , wherein the X-ray projection imaging device is a radiography system or fluoroscopy system including a central processing unit or a computer for evaluation of image data.

18. The method of claim 1 , wherein different weighting coefficients are used for at least two of the data frames, and wherein at least one weighting coefficient is dynamically adapted during the generating of the snapshot image.

19. The method of claim 4 , the trigger signal is manually shiftable backwards in time such that a group of the data frames recorded before the applying of the trigger signal are used for the generating of the snapshot image.

20. The method of claim 6 , wherein at least one of
the generating of the snapshot image is performed in background and
the data frames are displayed on a primary display while the generating of the snapshot image or the snapshot image generated is displayed on a reference display.

21. The method of claim 9 , wherein in the data frames used for generating the snapshot image, an organ or other internal structure of a patient are identified being images of a same real object.

22. A system for controlling an X-ray projection imaging device, comprising:
a data interface, designed to
apply preferences for a serial radiography image acquisition to the X-ray projection imaging device,
start an execution of a serial radiography image acquisition with the X-ray projection imaging device,
receive a number of data frames recorded at different times during the serial radiography image acquisition, and
apply a trigger signal to the X-ray projection imaging device during the serial radiography image acquisition; and

an image-generation unit, designed to generate a snapshot image from a subset of the data frames, wherein the subset being chosen from the data frames recorded based on the trigger signal.

23. The system of claim 22 , wherein the data interface and the image-generation unit of the system are part of a data-network, the data network and a x-ray imaging device, configured to provide the data frames, being in data-communication, wherein the data network comprises at least one of parts of the internet and a cloud-based computing system.

24. A control unit for controlling an X-ray projection imaging device comprising the system of claim 22 .

25. An X-ray projection imaging system, comprising:
a X-ray projection imaging device; and
the control unit of claim 24 .

Assignees

• Siemens Healthcare Gmbh

Inventors

• Beister Marcel
• Bock Ruediger
• Geiger Bernhard
• Jedinger Sandra

Classifications

• A61B6/467

  characterised by special input means · CPC title

• A61B6/487 Primary

  involving fluoroscopy · CPC title

• A61B6/4441

  the rigid structure being a C-arm or U-arm · CPC title

• A61B6/5258

  involving detection or reduction of artifacts or noise · CPC title

• A61B6/54

  Control of apparatus or devices for radiation diagnosis · CPC title