Are you exposed to a lot of radiation while getting a CT scan of the temporal bone?

Hello,

Welcome to icliniq.com.

Thanks for writing in, and I understand your concern. A Computed tomography (CT) scan of the temporal bone without contrast involves approximately 0.8 mSv radiation dose in helical scanning and 1.21 mSv for sequential scanning. This is a small amount of radiation and not much radiation exposure. However, if you have got many scans, then there is a cumulative dose that can be measured by multiplying the dose and number of scans. The additional cancer risk depending on dose is approximately 0.003 percent per CT temporal bone scan done, and 99.997 percent of the scan will not cause any radiation dose induced cancer in you. Any ear issues need to be evaluated by the ear, nose, and throat doctor (ENT) to know the possible condition and if it is significant to radiation.

Thank you.

Hello,

Welcome back to icliniq.com.

The radiation dose of CT angiogram of the head and neck is approximately 16.4 mSv and of digital subtraction angiography (DSA) of the head and neck is approximately 5 mSv. So you are likely to get a lesser dose during the DSA procedure. I hope this clarifies your doubts.

Regards.