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A computerized tomography scan, also called a CT scan, is a type of imaging that uses X-ray techniques to create detailed images of the body. It then uses a computer to create cross-sectional images, also called slices, of the bones, blood vessels and soft tissues inside the body. CT scan images show more detail than plain X-rays do.
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 arteries and reduce blood flow to the heart. A coronary calcium scan may show coronary artery disease before you have symptoms.
CT scan. If your pneumonia isn't clearing as quickly as expected, your doctor may recommend a chest CT scan to obtain a more detailed image of your lungs. Pleural fluid culture. A fluid sample is taken by putting a needle between your ribs from the pleural area and analyzed to help determine the type of infection.
Computerized tomography (CT) scan. A CT scan uses a series of X-rays to create a detailed image of your brain. A CT scan can show bleeding in the brain, an ischemic stroke, a tumor or other conditions. You might have a dye injected into your bloodstream to view the blood vessels in the neck and brain in greater detail.
A CT coronary angiogram usually is done in the radiology department of a hospital or an outpatient imaging facility. Before the procedure. Before a CT coronary angiogram, a healthcare professional may give you medicine called a beta blocker. This slows your heart rate to help the CT scanner make clearer images.
CT scan. This type of scan takes a series of X-ray images from different angles and makes them into cross-sectional images. MRI. This type of scan uses radio waves and a magnetic field to make detailed images. M-iodobenzylguanidine (MIBG) imaging. This type of scan uses a radioactive compound that's injected into the body.
CT scan. This specialized X-ray is usually the first test used to detect bleeding in the brain or another type of stroke. The test produces images that are 2D slices of the brain. A CT angiogram can create more-detailed images of the arteries providing blood flow in the brain. The test involves injecting dye that makes it easier to observe ...
CT scans can show the size of polyps deep in the sinuses and where they are. These studies can also help rule out other reasons the nose is blocked. Allergy tests. Skin tests can show if allergies are causing ongoing inflammation.
Virtual colonoscopy (CT colonography) During a virtual colonoscopy, a CT scan produces cross-sectional images of the abdominal organs, allowing the doctor to detect changes or abnormalities in the colon and rectum. To help create clear images, a small tube (catheter) is placed inside your rectum to fill your colon with air or carbon dioxide.
Magnetic resonance imaging (MRI) with contrast dye is usually used to diagnose an acoustic neuroma. This imaging test can detect tumors as small as 1 to 2 millimeters in diameter. If MRI is not available or you can't have an MRI scan, computerized tomography (CT) may be used. However, CT scans may miss small tumors.