The imaging principle of the X-ray machine, how to make the human body image clearer?
In the previous article, we have introduced the principle of X-ray machine for shooting human body perspective, then when X-ray machine shoots human body, why can the different parts of the human body be clearly distinguished in the image display?
The principle of X-ray imaging, in addition to the characteristics of the X-ray itself, is also based on the difference in density and thickness between different tissues of the human body. After the X-ray passes through different parts, the degree of absorption is different, and the final imaging is There will be differences.
However, some organs or tissues need to introduce certain substances to expand the differences between tissues and organs because of their small differences. For example, we use contrast agents in some examinations.
However, in orthopedic diagnosis, the introduction of a contrast agent is generally not required, and a direct examination can be done.