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Computed tomography (CT) of the sinuses uses special x-ray equipment to evaluate the paranasal sinus cavities – hollow, air-filled spaces within the bones of the face surrounding the nasal cavity. CT scanning is painless, noninvasive and accurate.
- Radiation Dose from X-Ray and CT Exams - RadiologyInfo.org
If you have an x-ray exam that includes tissues or organs...
- Radiation Dose from X-Ray and CT Exams - RadiologyInfo.org
If you have an x-ray exam that includes tissues or organs that are more sensitive to radiation, your effective dose will be higher. Effective dose allows your doctor to evaluate your risk and compare it to common, everyday sources of exposure, such as natural background radiation.
19 Νοε 2021 · We aimed to compare the effective doses of radiation between 3D navigation protocols and standard protocols for sinus computed tomography (CT) scans for both the adult and pediatric population.
29 Νοε 2018 · A CT Sinus scan requires ~0.7 mSv or radiation equal to about 7 chest x-rays. A CT Neck scan requires ~6.0 mSv or radiation equal to about 60 chest x-rays. A CT Head or Brain scan requires ~2 mSv or radiation equal to about 20 chest x-rays.
Common types of CT scans and the amount of radiation you would absorb from them include: Belly and pelvis: 10 mSv, equal to about 3 years of background radiation. Colonography: 6 mSv, equal to ...
A sinus-screening CT (computed tomography) scan uses a special X-ray machine to take detailed pictures of the sinuses. CT is useful because it can show many types of tissue in the same image. This includes bones, soft tissues, muscle, and blood vessels. How does the scan work?
Risks for a CT scan include: Being exposed to radiation; Allergic reaction to contrast dye ; CT scans expose you to more radiation than regular x-rays. Having many x-rays or CT scans over time may increase your risk for cancer. However, the risk from any one scan is very small.
