Health encyclopaedia 健康百科全书

Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

X-ray X射线

X-ray is an imaging technique that has been used since 1895 to show up abnormalities in bones and certain body tissue, such as breast tissue. X射线是一种成像技术已用于自1895年显示了异常的骨骼和某些人体组织，如乳腺组织。

X-rays are a type of high-energy radiation that is like light waves but higher in energy. X射线是一种高能量的辐射是一样的光波，但较高的能源。 An x-ray machine can produce short bursts of x-rays that pass easily through fluids and soft tissues of the body but are blocked by dense tissue such as bone. 1 X光机，能产生短期扫射X光检查，通过很容易通过流体和软组织的机构，但所封锁密集的组织，如骨。

Contrast x-rays use a substance (called a contrast medium) that makes hollow or fluid-filled structures visible.对比X光检查，使用一种物质（称为对比剂） ，使空心或充液结构可见。 This means that structures such as the digestive tract, blood vessels or urinary system that do not usually show up on x-ray, can be seen.这意味着结构，如消化道，血管或泌尿系统即通常不显示出来的X射线，可以看出。 The substance is injected or swallowed and X-rays cannot pass through it, so the area will appear white on the x-ray.该物质注入或吞噬和X光检查无法通过，所以该地区会出现白色对X射线。

• Why is it necessary? 为什么要呢？
• How is it performed? 是如何表现呢？
• What is it used for? 它是什么用呢？
• How does it work? 它如何工作？
• Risks 风险
• References 参考

• X-ray X射线

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