Properly Recognizing X-rays "Go get an X-ray!" Or "Go get a CT scan." If you or a loved one goes to the doctor, I'm sure you've heard these words often. However, I'm afraid many people have a hard time answering the question of what an X-ray is and whether or not it is harmful to the human body. Or maybe you're afraid of X-rays and think that going into a radiology department is like entering a "danger zone" full of radiation. Of course, this is a valid concern, but it is clearly overblown. In reality, however, there are many people who have questions about the risks of X-rays.
What are the risks of X-rays? Can we just skip it?
In 1895, Röntgen discovered X-rays, and only a few months later, this kind of ray that can "see through" has been used in the field of medicine, in order to image the discovery of diseases, and become a "demon-spotting mirror", therefore, in the past, the people called it Therefore, in the past, the common people called it "looking into the mirror". Since then, as a commonly used diagnostic means in clinical medical practice, X-rays have been widely used and have greatly improved the diagnostic accuracy and treatment effect judgment of doctors, and have become an important part of inquiry medicine.
"It can be said that without X-rays, there would be no development of modern medicine, and doctors would not be able to observe the internal structure of a patient before surgery, and evaluation after treatment would not be possible." Experts say, however, X-rays penetrate the human body is to produce a certain biological response, if the amount of exposure to X-rays is too much, more than the permissible dose, it may produce a radiation reaction thus leading to damage to the body and increase the risk of cancer possibilities.
Generally speaking, every time an X-ray is taken, the human body receives about 0.02 millisieverts of radiation. How much radiation can the human body actually tolerate? Recently, Japan revised the acceptable radiation dose for the human body to receive no more than 200 millisieverts of radiation exposure in a year. Of course, each person's resistance and physical condition will be different. In addition, in our relevant regulations, the upper limit of acceptable annual radiation dose for human body is only 50 millisieverts, which is even less harmful to human health.
Experts say that the reason why many people are afraid, is not enough knowledge of medical X-rays. Of course, X-rays are a "double-edged sword", but overall the benefits outweigh the disadvantages, as long as the amount of radiation does not exceed the acceptable limit, nothing to worry about. On the contrary, if you blindly avoid X-rays, it will be a great loss for your diagnosis and treatment. What's more, radiation is everywhere in our lives, even when you are sunbathing, watching TV, flying, even the air you breathe and the food you eat every day, there is radiation, but the amount is very small and will not cause harm to the human body, so you can not feel its existence.
Normal X-ray examination on the body damage is small
We all know that the more radiation illuminated the more damage to the body, that is now widely used X-ray examination, its radiation in the end will not produce risk, which is the concern of many people.
"In fact, due to the progress of equipment technology, the radiation dose now compared with the previous has been greatly reduced, basically do not have to worry about its harmful effects. Moreover, its irradiation range will also be precisely controlled by specialized equipment, and the rays will not 'run around', not to mention that you don't have to worry about affecting other parts of the body."
In the case of X-rays, the amount of radiation you "eat" is now about 0.02 millisieverts per shot. It has been explained that this is actually equivalent to the amount of radiation you "eat" when you watch TV or look at a computer for 2 hours a day for 4 to 6 months, which has a negligible effect on your body.
Generally speaking, there are two types of radiation in medical examinations: one is radiation in radiological images, such as X-rays and CT, which is directional and controllable, and basically ensures that only the part being examined will have rays, and the radiation dose is quite small. The other type is radiation in nuclear medicine examination, which is not directional and will persist for quite some time, but is controllable after measures are taken. Radionuclides tend to remain in the body after a general nuclear medicine examination and, if left unprotected, can cause possible radiation damage to those around them who come into contact with them. However, the radionuclides used in this kind of examination nowadays have a very short distance and low dose of radiation, as well as a short duration of action, so that the impact on the human body is also very small. Of course, after receiving a nuclear medicine examination, a short period of time or try to avoid close close contact with family members.
"The medical staff will pay attention to the protection of the patient when conducting imaging examinations, the need to not use, the protection will be protected." Director Liang Changhong said. But there are still people who have the misunderstanding that as long as the photo will definitely hurt the body, X-ray examination is too "demonized", or too "arbitrary", often take the initiative to ask to do a variety of X-ray examination, this is not correct. "