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X-ray diagnostic apparatus and method of operating same

A diagnostic device and X-ray technology, applied in the fields of radiodiagnostic equipment, diagnosis, radiodiagnostic image/data processing, etc., can solve problems such as inability to confirm tumors, inability to grasp the positional relationship of tumors, etc., and achieve the effect of low radiation

Inactive Publication Date: 2016-12-28
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In such an X-ray diagnostic apparatus, when a tumor with a ground glass opacity appears on a CT (Computed Tomography) image and the cell density inside is small, the tumor may not be confirmed in the fluoroscopic image. Happening
Therefore, in a biopsy using a bronchoscope for collecting peripheral tumor cells of the lung, the positional relationship between the tumor and instruments such as forceps used for cell collection cannot be grasped

Method used

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  • X-ray diagnostic apparatus and method of operating same
  • X-ray diagnostic apparatus and method of operating same
  • X-ray diagnostic apparatus and method of operating same

Examples

Experimental program
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Embodiment 1

[0029] Embodiment 1 is an embodiment of an X-ray diagnostic apparatus, and this X-ray diagnostic apparatus includes: an image processing unit 112 that irradiates an object with X-rays, and detects an X-ray signal obtained by detecting the transmitted X-rays of the object as an X-ray signal. X-ray images; an imaging angle calculation unit 126, which uses a CT image to calculate an imaging angle required for recognizing the positional relationship between the first object and the second object in the tomosynthesis image; the control unit 118, which controls Thereby, photographing is performed at the imaging angle; a tomosynthesis image construction unit, which constructs a tomosynthesis image based on the X-ray signals photographed at the imaging angle; a display unit 116, which displays the tomosynthesis X-ray Photographically combine images. In addition, this is an example of an operating method of an X-ray diagnostic apparatus. The X-ray diagnostic apparatus irradiates an obj...

Embodiment 2

[0050] Example 2 is an example of an X-ray diagnostic apparatus capable of displaying an X-ray image and a tomosynthesis image side by side on the display unit 116 and an operation method of the X-ray diagnostic apparatus. The X-ray diagnostic apparatus of this embodiment will be described, but the apparatus configuration is the same as figure 1 The device structure of the shown embodiment 1 is the same, so it is used here Figure 4 , Figure 5 The differences from Example 1 are highlighted.

[0051] In this example, X-ray imaging is performed according to the information of the imaging angle θ1 determined in Example 1 to obtain data, and an X-ray image based on the obtained data is displayed on the display unit 116 . Preferably as Figure 4 As shown, a fluoroscopic image 401 and a tomosynthesis image 402 are displayed side by side. That is, in an X-ray diagnostic apparatus having a fluoroscopic function, a fluoroscopic image 401 is displayed on the left side of the displa...

Embodiment 3

[0055] The third embodiment is an example of an X-ray diagnostic apparatus in which the imaging angle calculation unit 126 calculates the imaging angle of each bronchus next to the tumor, and the control unit 118 controls the imaging at the imaging angle in accordance with a predetermined priority order. In addition, Example 3 is an example of an operation method of an X-ray diagnostic apparatus that calculates the imaging angle of each bronchus next to the tumor and controls to perform imaging at the corresponding imaging angle in accordance with a predetermined priority order. Furthermore, Example 3 is also an implementation of an operation method of the X-ray diagnostic apparatus in which the tomosynthesis image unit 121 of the X-ray diagnostic apparatus determines the priority order in the order of the bronchus that is closer to the tumor to the bronchus that is far away. example. The device structure of the X-ray diagnostic device of this embodiment is the same as figure...

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Abstract

The invention provides an X-ray diagnostic apparatus and a method of operating the same, thereby reducing the radiation and improving the sensitivity by using a CT image taken in advance. In the CT image displayed on a CT data display unit, the path of a bronchus used for the advance of forceps collecting cells and the bronchus near a tumor are determined on a Sagittal cross section or an Axial cross section, and in the imaging angle calculation unit, according to positions of the bronchus and the tumor, a shooting angle required for recognizing the positional relationship in a depth direction of the tumor and the bronchus, i.e., the Y direction, on a tomographic X-ray radiographic combination image is calculated. The calculated shooting angle is stored in a shooting angle storage unit, and is inputted to a control unit at the time of the inspection to perform the shooting. An X-ray signal outputted from the X-ray detecting unit is inputted to the tomographic X-ray radiographic combination image constructing unit, and the tomographic X-ray radiographic combination image is constructed in accordance with the angle information stored in the shooting angle storage unit and displayed on the display unit.

Description

technical field [0001] The present invention relates to an X-ray diagnostic device and its operating method for constructing and displaying a tomosynthetic image of an object in a subject using X-rays. Background technique [0002] An X-ray diagnostic apparatus irradiates a subject with X-rays, and an X-ray detector detects the transmitted X-rays to obtain X-ray signals of the subject. Then, the X-ray signal is processed by the image processing unit, and the X-ray image or fluoroscopic image is displayed on the display unit. [0003] In such an X-ray diagnostic apparatus, when a tumor with a ground glass opacity appears on a CT (Computed Tomography) image and the cell density inside is small, the tumor may not be confirmed in the fluoroscopic image. Happening. Therefore, in a biopsy using a bronchoscope for collecting peripheral tumor cells of the lung, the positional relationship between the tumor and instruments such as forceps used for cell collection cannot be grasped....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00A61B6/03
CPCA61B6/032A61B6/4233A61B6/44A61B6/463A61B6/52
Inventor 饭村隆志马场理香松崎和喜
Owner HITACHI LTD