A CT (computed tomography) scan is a medical imaging technique that uses X-ray technology to generate cross-sectional images of the body. CT scans do involve exposure to ionizing radiation, which is a type of radiation that has enough energy to remove tightly bound electrons from atoms, potentially causing damage to living tissue. However, the amount of radiation in a CT scan can vary depending on various factors, such as the type of CT scan, the body part being imaged, and the settings used by the CT scanner.
The amount of radiation in a CT scan is typically measured in millisieverts (mSv), which is a unit that quantifies the biological effect of ionizing radiation. The average effective dose of radiation from a typical CT scan can range from 1 to 10 mSv. However, some CT scans, such as those of the chest or abdomen, may result in higher radiation doses, up to 20 mSv or more.
It’s important to note that the radiation dose from a CT scan is cumulative, meaning that repeated CT scans over time can increase a person’s overall radiation exposure. Radiologists and medical professionals take appropriate precautions to minimize radiation exposure during CT scans, such as using the lowest effective dose for the specific medical indication, and considering the potential benefits of the CT scan in relation to the risks of radiation exposure.
If you have concerns about radiation exposure from a CT scan, it’s best to discuss them with your healthcare provider, who can provide you with specific information based on your individual circumstances.
