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Does A Ct Scan Show Brain Tumors
Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more
CT angiogram: A regular ct scan might detect a large aneurysm with calcium. A test that is designed specifically to look for aneurysms is the ct angiogram. With this test contrast goes into the vessels of the brain. If there is an aneurysm that is larger than 2 mm, it should be detected with this technique. ...Read more
No: Labyrinthitis is not diagnosed with either ct or mri. It is a clinical diagnosis, meaning a diagnosis that is made by your symptoms and examination. There is a test called an eng which can be done as well that looks at how your eyes move in response to challenges to your balance system. The eyes are "hard wired" to the inner ear and in cases of vertigo they will move rapidly. This can be measured. ...Read moreSee 1 more doctor answer
Usually: An MRI is probably the best way to detect a brain tumor in a patient who has symptoms or findings on a medical examination that suggests a brain tumor may exist. Getting an MRI if you are asymptomatic(have no medical issues) is unwarranted and should not be done. ...Read moreSee 2 more doctor answers
Not likely: Most intracranial vascular anomalies, including aneurysms, require IV contrast to be seen on ct head. However, ct without contrast is 90% sensitive for intracranial bleeding. The risks of IV contrast for ct include kidney injury and allergy to contrast dye. Good luck! ...Read more
Stimulants: Stimulants such as Cocaine and amphetamine exert their effects on the user's nervous system and change the user's emotions, behavior, and affects cognition. They may cause miicrovascular ischemic disease of the brain which is unlikely to be detected by MRI or ct scan. ...Read moreSee 1 more doctor answer
They can: The diagnostic yield of increased with use of IV contrast material as some tumors disrupt the so called blood brain barrier affording the contrast the ability to infiltrate from the blood stream into the tumor. Small tumors that have not disrupted the integrity of blood vessels may escape detection on CT especially if the have the same radiographic tissue density as their surrounding tissue. ...Read more
Sometimes: If an aneurysm is large, and especially if there are calcifications in the wall of the vessel, it can be seen on ct. However, angiography with a ct (dye in vessels, looking at the vessels themselves) is better test. Mrangiography is also sometimes useful, certainly better than simple ct done without contrast. ...Read moreSee 2 more doctor answers
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