How Much Radiation with CT Scans of the Sinus or Neck?

Patients are often too quick to want CT scans to further evaluate their symptoms without appreciating the downsides of such exams. For ENTs, that mainly involves scans of either the Sinus or Neck. Using the website RayRisk.com , one can easily figure out how much radiation exposure occurs with not just CT scans, but all other radiological scans as well. To use as a baseline, take a regular Chest X-ray which exposes a person to 0.10 mSv of radiation. A CT Sinus scan requires ~0.7 mSv or ra…

11/29/2018 0

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How Much Radiation Exposure Occurs with a CT Scan? X-ray? Sunlight?

A common concern now is how much radiation exposure occurs with common radiological testing such as x-rays and CT scans, especially given the small increased risk of cancer with accumulated exposure over years. Of note, ultrasounds and MRI scans do not emit radiation. MRI scans use magnets while ultrasounds use sound waves in order to obtain imaging information. So, here's a chart comparing such tests with common environmental radiation exposure such as sunlight. Information taken fro…

2/13/2013 0

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