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X-ray fluoroscopic imaging apparatus

A technology of fluoroscopic photography and X-rays, which is applied in the fields of radiological diagnosis instruments, medical science, diagnosis, etc., can solve problems such as inability to perform operations properly, and achieve the effect of reducing fatigue and other burdens.

Active Publication Date: 2017-11-28
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, since the brightness (brightness) of the X-ray image displayed on the image display unit 111 varies with the thickness of the subject, the operation may not be performed appropriately.

Method used

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Embodiment 1

[0051] Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings.

[0052]

[0053] Such as figure 1 As shown, the X-ray fluoroscopy apparatus 1 according to Embodiment 1 includes: a top plate 3 for placing the subject M in a horizontal posture; an X-ray tube 5 for irradiating the subject M with X-rays 5a; And an X-ray detector 7 that detects X-rays irradiated to the subject M and transmitted through the subject M. The X-ray tube 5 and the X-ray detector 7 constitute an imaging system, and are arranged facing each other across the top plate 3 . The X-ray tube 5 is provided with a collimator 9 for confining the X-rays 5 a irradiated from the X-ray tube 5 into a cone shape. The configuration in which the collimator 9 restricts the X-ray 5a is not limited to a conical shape, and may be appropriately changed to a pyramidal shape or the like.

[0054] The X-ray detector 7 detects the X-rays 5a irradiated from the X-ray tube 5 to the s...

Embodiment 2

[0099] Next, an X-ray fluoroscopy apparatus according to Embodiment 2 of the present invention will be described with reference to the drawings. The overall structure of the X-ray fluoroscopy apparatus according to the second embodiment is the same as that of the X-ray fluoroscopy apparatus according to the first embodiment. In addition, the operation steps of the X-ray fluoroscopy apparatus according to the second embodiment are common to the operation steps of the X-ray fluoroscopy apparatus according to the first embodiment.

[0100] However, in the first embodiment, the configuration is adopted in which the image field area V of the X-ray image captured by the monitor 17 is divided into a plurality of areas in advance. On the other hand, the X-ray fluoroscopy apparatus according to the second embodiment has a configuration in which a reference area can be set without dividing the image field area V in advance. Below, use Figure 4 Each figure in the figure describes the ...

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Abstract

This X-ray fluoroscopic imaging apparatus comprises a reference region setting unit 19 with which a reference region is manually set on a display screen. An operator visibly confirms the position of a region of interest of a subject shown on a monitor 17 and, using the reference region setting unit 19, sets a new reference region on the display screen so as to include the region of interest therein. This allows rapid and reliable setting of the reference region that includes the region of interest therein. Additionally, in setting the reference region, burden on the operator is reduced because there is no need for the operator to look at places other than the monitor 17. A luminance value calculation unit 21 calculates an image luminance value on the basis of a luminance value of each pixel positioned within the range of the reference region, and an irradiation condition calculation unit 23 calculates a corrected irradiation condition on the basis of the image luminance value. An X-ray irradiation control unit 13 is capable of acquiring an X-ray image in which the operator can suitably view the region of interest by controlling an X-ray tube 5 on the basis of the corrected irradiation condition.

Description

technical field [0001] The present invention relates to an X-ray fluoroscopy apparatus for acquiring X-ray images by irradiating an object with X-rays, and more particularly relates to a technique for determining X-ray irradiation conditions for capturing suitable X-ray images. Background technique [0002] An X-ray fluoroscopy device that takes an X-ray image of a subject by irradiating the subject with X-rays is used in a medical field. Such as Figure 6 As shown, a conventional X-ray fluoroscopy apparatus 101 includes a top plate 103 , an X-ray tube 105 , an X-ray detector 107 , an image generation unit 109 , an image display unit 111 , and an X-ray irradiation control unit 113 . [0003] The top plate 103 is used to place the subject M in a horizontal posture. The X-ray tube 105 irradiates the subject M with X-rays 105a. X-ray tube 105 and X-ray detector 107 are arranged facing each other with top plate 103 interposed therebetween. The X-ray detector 107 detects the X...

Claims

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Application Information

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IPC IPC(8): A61B6/00
CPCA61B6/00
Inventor 坂本祐贵清水达也
Owner SHIMADZU SEISAKUSHO CO LTD
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