1. It is very safe for a person to have a PET CT examination once a year
Nuclear medicine experts said: PET CT examination is very safe. There is no need to doubt PET because of worries about the side effects of PET CT. The good effect of CT examination. The nuclear medicine profession has conducted tests and found that the dose received during a PET CT examination is probably very small. It is expressed as the absorbed dose of radiation rehabilitation. It is about 10cGy. This amount is very, very low and will not have a big impact. A PET CT scan is equivalent to a CT scan. These two CT scans may only be 20Gy. It is absolutely safe for one person to do 10 scans a year.
2. Although there is a trace amount of radiation in PET CT, it stays in the body for a short time
Of course, the small amount of radiation in PET CT examination does not mean that there is no radiation. A few hours after the examination, , there will be a trace amount of radiation in the subject, but the half-life of 18F is only 105-115 minutes. The radioactivity of such a short-term developer has almost no impact on the human body, and will be quickly metabolized and excreted with the human body's urine. , that is to say, the side effects of PET CT examination are small and can be ignored. These nuclides have a half-life. After three half-lives, there will be no harm, and it is safe for yourself and your relatives and friends around you.
3. PET CT equipment with many rows has relatively small radiation dose
In fact, the side effects of PET CT examination also depend on the advanced level of the equipment, the doctor’s experience and the hospital Is it a regular tertiary hospital? With the continuous advancement of medical technology, PET CT is also gradually updated. The new generation of PET CT with large number of rows, fast speed and accurate scanning is constantly emerging. The new generation of 18F-FDG tracer is also constantly updated. Doctors’ operations Mixing with the developer is crucial.
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