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X-ray diagnostic apparatus and image processing apparatus

A diagnostic device, X-ray technology, applied in image data processing, equipment for radiological diagnosis, diagnosis, etc., can solve the problem of reducing radiation exposure and achieve the effect of reducing radiation exposure

Active Publication Date: 2015-11-04
TOSHIBA MEDICAL SYST CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the above-mentioned conventional technologies, it may be difficult to reduce radiation exposure while maintaining image quality.

Method used

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  • X-ray diagnostic apparatus and image processing apparatus
  • X-ray diagnostic apparatus and image processing apparatus
  • X-ray diagnostic apparatus and image processing apparatus

Examples

Experimental program
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no. 1 Embodiment approach

[0027] First, use figure 1 An example of the X-ray image diagnostic system according to the first embodiment will be described. figure 1 It is a figure for demonstrating an example of the X-ray image diagnosis system concerning 1st Embodiment. For example, the X-ray image diagnosis system related to the first embodiment is as follows: figure 1 As shown, the main body of the X-ray diagnostic apparatus equipped with an X-ray tube, a table, an X-ray detector, etc., a close-range operation table equipped with a see-through monitor (monitor), etc., and an image processing device, a system monitor, and a see-through monitor and other remote operation desks are connected to each other. For example, the operator in the operation room operates the remote operation desk to cause the main body of the device to tilt the table top on which the patient (subject) is placed, or to perform imaging systems such as X-ray tubes and X-ray movable apertures. Perform perspective or photography wh...

no. 2 Embodiment approach

[0118] The first embodiment has been described so far, but it can also be implemented in various forms other than the above-mentioned first embodiment.

[0119] Used in the first embodiment above Figure 10 The scatter component estimation process described is not limited to the above example, and may be executed by other methods. Figure 14 It is a diagram for explaining the processing of the scattering component estimation processing unit 288 according to the second embodiment. For example, the scattering component estimation processing unit 288 may be configured by Figure 14 The circuit shown is implemented. This circuit is disclosed in Japanese Patent No. 2509181 figure 1 deformed. The two-dimensional memory 201, the scattered ray response function storage memory 202, the filter coefficient calculation circuit 203, the inverse Fourier transformer 204, the filter calculation circuit 205, the subtractor 206, and the X-ray gantry 207 correspond to this publication figur...

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Abstract

According to an embodiment, a grid is provided between an X-ray generator and a flat panel detector. Processing circuitry configured to convert original image based on X-rays having passed through the grid and detected into a plurality of pieces of frequency band data, remove interference fringes contained in at least one piece of frequency band data among the pieces of frequency band data, reduce noise contained in the pieces of frequency band data, correct a scattered radiation of the original image based on a scattered radiation contained in the X-rays having passed through the grid and a scattered radiation contained in X-rays having passed through a grid that removes scattered radiation to a larger extent than the grid, and synthesize a plurality of pieces of frequency band data to generate image.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2014-94203 filed on April 30, 2014, and the entire content of the Japanese Patent Application is cited in this application. technical field [0002] Embodiments relate to an X-ray diagnostic device and an image processing device. Background technique [0003] Conventionally, in an X-ray diagnostic apparatus, a grating (grid, grid) is disposed on the detection surface side of an X-ray detector in order to remove scattered X-rays (scattered rays) generated in a subject. For example, the grating alternately arranges X-ray-absorbing lead foils and X-ray-absorbing intermediate substances (such as aluminum or fiber) to remove scattered rays by absorbing them through the lead foils. Here, the grating arranges the lead foil and the intermediate substance at a predetermined grid density (the number of lead foils per unit length). [0004] In an X-ray diagnostic apparatus, when an FPD (Flat Panel Detecto...

Claims

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Application Information

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IPC IPC(8): A61B6/00
CPCA61B6/4233A61B6/5258G06T5/10G06T2207/10116A61B6/4291G06T5/70A61B6/5205A61B6/5282
Inventor 加藤久典菅原靖宏小林由昌
Owner TOSHIBA MEDICAL SYST CORP
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