Does lung CT have high radiation?

Generally speaking, it is very common for people to go to the hospital for examination and treatment after they are sick. Different diseases require different instruments, examination methods and treatment methods. CT is a common examination method, which usually has radiation to the human body. However, if it is not excessively examined, it generally does not affect human health. If a CT scan of the lungs is done, will the radiation be high?

Does lung CT have high radiation?

Generally speaking, the amount of radiation from a lung CT scan is small and will not cause serious harm to the human body.

Does CT scan of the lungs cause radiation? Does it have any effect on the body?

When lung disease occurs, doctors often prescribe chest X-rays and CT scans. Although the price of CT is much higher than that of chest X-ray, many people will directly ask their doctors to prescribe CT scans due to its high clarity. However, a major disadvantage of CT is that the radiation dose is much greater than that of a chest X-ray. The principle of CT is to use X-rays with super penetrating power to penetrate the human body for scanning. The computer will then display the human organs clearly and three-dimensionally, which the doctor uses to analyze the condition. The X-rays are the source of radiation. Long-term and multiple exposure to X-rays can cause many diseases. This is true for ordinary people, not to mention pregnant women who have the weakest resistance at this time.

For safety reasons, ordinary people should not undergo CT scans more than twice a year. Because radiation is very likely to cause fetal malformations, pregnant women should carefully weigh the choice between chest X-rays and CT scans when undergoing lung examinations. Generally, hospitals will not prescribe CT scans for pregnant women.

This shows that CT examinations need to be strictly controlled. Except for people at high risk of lung cancer, if it is just a routine lung examination, it is recommended to only take a chest X-ray.

What is the best test for lung cancer?

In fact, the best examination for lung examination is not what we think is the best, especially for pregnant women. Usually after consultation, the doctor will determine what examinations are best for the patient based on the symptoms of the illness. We should actively check and treat according to the doctor's guidance. Generally speaking, routine lung examinations can be done with chest X-rays, and only if abnormalities in the lungs are found will CT and enhanced CT be performed. In rare cases, bronchoscopy or puncture may be performed.

There are also some more special examinations, such as bronchoscopy. But bronchoscopy is only done for people who have excessive secretions or infections in their lungs that are blocked by other conditions. It is not necessary for general inspection.

From this point of view, lung examination is mainly about imaging. In terms of imaging, the clarity of chest X-rays is less than that of CT scans, and their accuracy is also lower. Due to the poor clarity of chest X-rays, misdiagnosis often occurs. If necessary, a chest CT scan with higher accuracy should be chosen. Specific arrangements should be made according to the doctor's instructions.