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Curved mirror and x-ray data acquisition system comprising the curved mirror

A technology of X-ray and curved mirror, which is applied in the field of X-ray data acquisition system, can solve the problems of signal-to-noise ratio image artifacts and other problems, and achieve the effects of reducing image artifacts, improving low-contrast resolution, and improving signal-to-noise ratio

Active Publication Date: 2016-03-30
SIEMENS SHANGHAI MEDICAL EQUIP LTD
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  • Abstract
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Problems solved by technology

[0005] In order to overcome the defects of poor signal-to-noise ratio of images in the prior art and image artifacts caused by the geometric parameters of the X-ray cone beam, the present invention proposes a curved mirror capable of reflecting X-rays and an X-ray system comprising the curved mirror. X-ray data acquisition system

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  • Curved mirror and x-ray data acquisition system comprising the curved mirror
  • Curved mirror and x-ray data acquisition system comprising the curved mirror
  • Curved mirror and x-ray data acquisition system comprising the curved mirror

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Embodiment Construction

[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings.

[0024] The present invention provides a curved mirror capable of reflecting X-rays. The concave surface of the curved mirror is coated with multiple layers of reflective films capable of reflecting X-rays, and the layer thickness of the reflective films is designed along the tangential direction of the curved mirror. Gradient distribution, after the incident X-ray beam is reflected by the reflective film, the outgoing X-ray beam becomes a parallel X-ray beam with the same spectrum. In order to improve the signal-to-noise ratio of the image and reduce the image artifacts caused by the geometric parameters of the cone beam.

[0025] One surface of the X-ray filter of the present invention is coated with a plurality of layers of reflective film...

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Abstract

The invention relates to the field of medical equipment, in particular to a curved mirror. A plurality of reflecting films capable of reflecting X-rays are plated on the curved surface, and thicknesses of the reflecting films are in gradient distribution along a tangential direction of the curved mirror. Included angles exist between the curved mirror surface provided with reflecting films and incident X-ray beams, and the incident X-ray beams become parallel emergent X-ray beams with identical frequency spectra after being reflected by the reflecting films. The invention further provides an X-ray data acquisition system comprising the curved mirror. By means of the curved mirror and the X-ray data acquisition system comprising the same, the signal to noise ratio of images is improved, and image artifacts caused by geometric parameters of taper beams are reduced.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a curved mirror capable of reflecting X-rays and an X-ray data acquisition system including the curved mirror. Background technique [0002] In the field of X-ray imaging, since the X-ray emitted by the X-ray tube has a continuous broad energy spectrum, for example, it is distributed within 1-150 keV, wherein low-energy X-rays (such as 1-10 keV) have no meaning for the final imaging result, and will It is attenuated when passing through the tissues and organs of the human body. In order to reduce the radiation of low-energy X-rays to the human body, the current common practice is to arrange some thin layers of attenuating materials (hereinafter referred to as attenuating layers) in the X-ray propagation direction to attenuate the low-energy X-rays before the X-rays reach the human body. , but the attenuated X-rays still have a continuous broad energy spectrum, such as 10 to 150 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00
Inventor 王薇田毅张建卫朱京涛
Owner SIEMENS SHANGHAI MEDICAL EQUIP LTD
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