Can a two-month-old baby do head ct? Does radiation have a great influence on him in the future?

Doing brain cT for children is very harmful: it may lead to long-term carcinogenesis and affect intelligence and genetic effects. Because the younger you are, the more sensitive you are to X-rays, and the greater the radiation damage! Therefore, infants and young children should try to avoid exposure to X-rays, and even avoid CT examination, because this is a large dose and radiation examination in medical X-ray examination at present, so try not to do it! At present, the abuse of CT examination is not uncommon. Patients have a small problem, that is, they have done CT examination, and some even have done it several times in a short time, which not only causes economic waste, but also may cause radiation damage. There is a risk of cancer in the long run!

Therefore, it is best for infants and young children not to contact X-ray examination! Don't even do CT! ! With the application and development of X-ray and CT scanning technology, X-ray and CT examination have become common means of medical examination, but while they are widely used, they also increase the harm of ionizing radiation (radioactive source) to human body. In order to ensure personal safety, it is necessary to strengthen the management and supervision of radiation protection in the medical field. The hazards of X-ray and CT examination and X-ray protection are summarized as follows:

1 Biological Effects of Ionizing Radiation

Basic concept of biological effects of ionizing radiation: ionizing radiation produces many types of biological effects, such as radiation carcinogenic reaction, radiation genetic effect, tissue reaction, non-cancer diseases, prenatal irradiation effect and so on.

Tissue reaction used to be called non-random effect and deterministic effect, which was caused by high dose irradiation, and there was a threshold for them. Random effects, including cancer and genetic diseases, have no threshold dose, and their incidence is proportional to the dose. All tissue reactions are somatic effects (effects that occur in irradiated individuals). Random effects can make the body

The physical effect (radiation-induced cancer in the exposed person) may also be a genetic effect that occurs in the offspring of the exposed person.

1.2 random effect-carcinogenic effect: random effect refers to carcinogenic and genetic effects. The deposition of ionizing radiation energy is a random process. Even in the case of very small dose, enough energy can be deposited in the critical volume of cells, thus causing cell changes or cell death. One or several cells are killed, which has no effect on tissues under normal circumstances. However, changes in a single cell, such as genetic changes, or changes that eventually lead to malignant tumors, will have serious consequences. These effects caused by the change of a cell are random effects. Carcinogenic effect is a random effect, and its incidence increases with the increase of dose, and there is no dose threshold. 1.3 random effect-genetic effect: radiation genetic effect is a genetic abnormality caused by the damage of genetic material of germ cells, and it is a random effect, which is manifested in the descendants of the victims. Traditionally, genetic diseases are divided into three categories: single-gene genetic diseases, chromosome aberration diseases and multifactorial diseases.

1.4 Deterministic effect: When all tissues are irradiated with high dose, a large number of cells are killed, but these cells cannot be compensated by the proliferation of living cells, and the resulting cell loss may lead to clinically detectable serious functional damage of tissues or organs. The severity of the observed effect is related to the dose, so there is a dose threshold. The effect caused by this irradiation is deterministic.

To sum up: X-ray examination in daily medicine is dangerous to health, and an X-ray film may cause cancer. Therefore, it is recommended not to do X-ray examination, especially CT, because the dose and radiation intensity of CT are quite large! The chances of long-term carcinogenesis and genetic effects are also greatly increased! Be careful!

Studies by the International Commission on Radiation Protection (ICRP) have confirmed that whole-body CT scanning will increase the risk of radiation-induced cancer by about 8%. Radiation carcinogenesis and hereditary diseases are dose linear, which means that the more exposure, the greater the possibility of fatal cancer and hereditary diseases.

Therefore, both medical staff and the public should learn some knowledge about radiation protection. If you can use non-radiation methods (such as ultrasound, nuclear magnetic resonance, etc. ), using non-radiation methods, try not to do X-ray examination. Try to avoid CT examination. Take precautions to reduce the harm of radiation to human beings.

CT is very harmful! CT is a computer-controlled X-ray tomography. The dose and radiation intensity of X-rays are very high. The younger you are, the more sensitive you are to X-rays, the greater the damage to normal tissues, and the risk of cancer in the long run! In particular, human glands are easily damaged (glands are the most sensitive: eye gland, thyroid gland, thymus gland, breast, gonad, epithelial cells of large and small intestine, pelvis and lymph. . ), it may cause cancer in the long run. And there is no lower threshold for human body to be hurt by X-rays! Suggest that children generally do not do CT! It can be replaced by nuclear magnetic resonance, color ultrasound and endoscope. It's best not to do it once! Because CT is controlled by computer, X-ray is used for tomography, so the dose and intensity of X-ray are very large during examination, and the absorption of 1gy = 1sv is replaced by the common one: Millicent = Haugery.

Chest scan: 477mGy*cm.

Upper abdominal plain scan+enhanced three-phase scan: 40-slice image 420mGy*cm×4= 1680mGy*cm.

Lumbar intervertebral disc scan: 330mGy*cm.

Multi-site scanning that often appears in our hospital

Head+chest, 1498mGy*cm. ：

Skull+cervical intervertebral disc, 994mGy*cm.

Skull+upper abdomen, 144 1 mGy*cm.

Skull+paranasal sinuses (mostly children), about 1600mGy*cm.

20 10, the total number of CT scans was 4 1784, and * * * multi-site scans were 3528 times (2-4 sites), accounting for 8.4%. 20 1 1 year1-June, the total number of CT scans was 223 18, and the number of multi-site scans was 2256, which was 10%, showing an upward trend.

Multi-site scanning basically exceeds 1000 mGy, and the radiation of CT scanning is comparable to nuclear radiation to some extent.

According to the article in the New England Journal of Medicine, the radiation generated by CT scanning has become the primary radiation source for Americans, and 2% of cancers originate from it.

Scientists from Oxford University and Cancer Research Center in the UK have analyzed the statistical data of 15 countries and found that 0.6% of the cancer cases diagnosed in the UK every year are caused by X-ray examination. In Japan, where X-ray and CT examinations are more common, 3.2% of new cancer cases are caused by these two examinations every year.

The radiation-induced cancer mortality rate of children is estimated to be 2-4 times higher than that of adults per dose unit. Children's rapid cell proliferation and longer life expectancy will increase the risk of sequelae. In addition, different physiological tissues have different sensitivities to X-rays. Highly susceptible tissues include hematopoietic tissue, lymphoid tissue, gonad, intestinal epithelium and fetus.