Recently, the saying about "CT radiation" has been spreading, such as many sayings, the most common is "every time you do more CT, the risk of cancer will increase by 43%", this is still in a study of more than 940,000 people, is this true?
Regarding this question, we must first understand, why do doctors let CT scans be done?
CT, that is, electronic computed tomography, uses the principle of X-ray imaging, through X-ray beams, γ rays, ultrasound, etc., to scan a certain part of the human body cross-sectionally, so as to obtain specific images, which are used by doctors to diagnose tumors, inflammation, infections, etc., so as to issue treatment plans.
In medicine, in addition to CT scan and CT enhancement, CT scan is an ordinary CT scan, which is used for the examination of multiple parts of the body, and to determine the preliminary location, shape, and size of the lesion, in short, it is the most basic examination method.
The overall characteristics are that the cost is relatively low, the examination time is relatively short, and the radiation dose that everyone is concerned about will be less. As for CT enhancement, it is mainly a supplement to CT non-scan, that is, its upgraded version.
After CT enhancement examination, the use of iodine contrast agent will make the lesion and the surrounding blood vessels, tissues and organs clear, which is a high-density image, and it is precisely because of this that because it is a multi-stage scan after CT non-contrast scanning, the cost will be relatively high, and the time after the examination is relatively long.
There will be more radiation that everyone is concerned about. Maybe seeing this, everyone is very worried, whether it is an ordinary version of CT or an enhanced version of CT, there will be radiation, will it cause cancer?
Although radiation is harmful to the human body, the specific situation depends on the number of times it is done and scientific analysis. According to the report of the International Commission on Radiological Protection, if the medical radiological examination in the hospital is far from the prefabrication of the human body (100mSv), then in this case, the risk of carcinogenesis to the human body is very small.
What's more, you will not do CT examination many times, and under a single dose of radiation, it will hardly have an impact on people's health. Therefore, everyone should follow the doctor's advice, do not worry too much, and it will not cause cancer.
On the contrary, in the things that really increase the risk of cancer, as the World Health Organization's International Agency for Research on Cancer has mentioned, aflatoxins (commonly found in moldy foods), alcoholic beverages, betel nuts, Chinese salted fish, processed meat, asbestos, and red meat, nitrates, nitrites, barbecue, frying, baking, etc., which are all around us, are the ones that require extra attention.
Therefore, it is necessary to believe in doctors and medical technology, keep your mouth shut and open your legs is an effective anti-cancer measure to return the body to health.