May 7, 2024 · Radiation exposure. During a CT scan, you're briefly exposed to a type of energy called ionizing radiation. The amount of radiation is greater than the amount from a plain X-ray …

Jan 5, 2024 · A SPECT scan is a type of imaging test that uses a radioactive substance and a special camera to create 3D pictures. This test is also known as single-photon emission …

Feb 13, 2024 · The amount of radiation absorbed by the body, called the absorbed dose, determines how bad the illness will be. Radiation sickness also is called acute radiation …

Feb 7, 2024 · The amount of radiation you're exposed to during an LDCT is much less than that of a standard CT scan. It's equal to about half the radiation you're exposed to naturally from the …

Jul 22, 2023 · A coronary calcium scan is a special computerized tomography (CT) scan of the heart. It looks for calcium deposits in the heart arteries. A buildup of calcium can narrow the …

Jan 10, 2025 · Radiation to the entire breast. One of the most common types of radiation therapy after a lumpectomy is external beam radiation of the whole breast (whole-breast irradiation). …

Jun 11, 2024 · A CT coronary angiogram exposes you to radiation. The amount varies depending on the type of machine used. If you're pregnant or you may be pregnant, you ideally should …

PET plus CT. Combining a PET scan with an MRI or CT scan can help make the images easier to interpret. At left is a CT scan, while the center image is a PET scan. The image on the right is …

Jul 6, 2023 · Virtual colonoscopy uses a small amount of radiation to make the pictures of your colon and rectum. Health care providers use the lowest amount of radiation possible to take a …

Nov 15, 2024 · Metaiodobenzylguanidine scan, also called MIBG scan, detects an injected radioactive tracer that's absorbed by paragangliomas. Positron emission tomography scan, …