Doctor insights on:
Will A Brain Aneurysm Show Up On A Plain Ct Scan Of The Head
USUALLY NOT: Since aneurysms are a 'defect' in the arterial system --they can really only be seen with a contrast ct study (angiogram) or a mra (mri-angiogram). One time i did have a patient with a leaking brain aneurysm which the effects of which were barely visible on ct but confirmed on mra--and she made it! ...Read moreSee 2 more doctor answers
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
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
Can I ask my doc to change my ct scan for my head to with contrast to alleviate my severe fear of brain aneurysm?
Yes: You can certainly ask about it. Rather than specifically requesting contrast though, I'd suggest asking about the potential benefits vs risk of a contrast study as opposed to the non-contrast. The appropriateness of contrast depends on the reason the study is being ordered. Contrast helps enhance detection of many findings but can obscure others. ...Read more
Does a CT scan rule out brain aneurysm? 6 months pain behind right ear and upper neck with dizziness/blurred vision. CT normal. What to do next?
Yes: Has to be a CTA (CT angiogram). CT scan of the head without contrast doesn't detect aneurysms unless they are larger. CT scan of the head with contrast has a slightly better chance. CTA of the head is good for seeing aneurysms. See radiologyinfo.org and stroke association.org for more details. ...Read more
Ct scan dects brain aneurysms? Is it possible for a CT scan without contrast to reveal an unruptured brain aneurysm? Is the test meant to find that sort of thing?
Are frequent nosebleeds a sign of brain aneurysm?I have nosebleeds and I'm curious.I also have lots of headaches and have recently had a cat scan
I had a ct scan and MRI of brain. Would that show an aneurysm? The scans were clear. One sided eye socket and temporal region pain.
See this morning: I answered this question for you this morning ...Read more
I just went to the ENT and had a CT scan of my head. Would it show if anything was wrong like tumors or anyuresms in the brain?
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
What are the side effects of an unruptured brain aneurysm and how can I tell if my CT with iodine scan failed to show any signs of an aneurysm ?
A small: Aneurysm generally won't cause any symptoms. A larger aneurysm could cause symptoms based on its location and what structures it is pressing on. Presumably the radiologist would have diagnosed an aneurysm if it was visible on CT, but unless the CT was specifically tailored to look for an aneurysm(CTA), a small aneurysm might not be visible on a routine CT. ...Read more
No: Aneurysms are weakness in blood vessels. Smoking, hypertension and collagen disorders can predispose to them. They take years to develop. A regular ct scan may miss them so if there is suspicion the gold standard is a digital subtraction angiogram. You probably had a negative ct angiogram and probably a followup cta is ok if your surgeon/neurologist feels it's important to exclude. ...Read moreSee 1 more doctor answer
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
Brain aneurysm coiled year ago. 3 MRA scans show occlusion.Worried walking my dog,incase a football should hit me on the head would it cause problem?
Ct scan uses data from a beam of xrays and reconstructs a cross sectional image of your body. It is a high dose of xrays and used only when the benefits outweigh the risk. Cancer risk is 1 in 500 in children. Also using iodinated contrast might cause transient renal failure in about 5% of patients. (contrast induced nepropathy) most do not explain this to the patient as ...Read more
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