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Doctor insights on: Can A Regular Ct Scan Of The Brain Show Blocked Arteries

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Can a regular CT scan of the brain show blocked arteries?

Can a regular CT scan of the brain show blocked arteries?

Indirectly: Can see stroke changes which suggest blocked arteries. Need contrast ct, preferably cta to see arteries. ...Read more

Dr. Amrita Dosanjh
1 Doctor shared a insight

Artery (Definition)

Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more


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Can blocked arteries or vessels be detected in a CT scan of the brain?

Can blocked arteries or vessels be detected in a CT scan of the brain?

Yes: Modern high resolution ct angiography has attained such detail that is simply amazing. For a clinically significant blockage, there is a very good chance it will be detected. ...Read more

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Is there any blocked arteries in the brain like a carotid artery that would show on ct?

Is there any blocked arteries in the brain like a carotid artery that would show on ct?

Yes: Cta is a good test to evaluate the vessels of the neck and brain. You can have blockages in the vessels inside your head. ...Read more

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Would a CT scan detect a brain annurysum and can they see the arteries by the cr scan?

Would a CT scan detect a brain annurysum and can they see the arteries by the cr scan?

Tests for aneurysm: A standard head CT scan without contrast would probably not show an aneurysm unless it was large.

A CT with contrast, or better, a CT angiogram or MR angiogram are much better at determining the presence of a cerebral aneurysm. ...Read more

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My doctor said my normal CT scans means I have no blocked arteries. Is this true?

My doctor said my normal CT scans means I have no blocked arteries. Is this true?

Seek clarification: It's always best to seek clarification from the doctor who gave you the information. If you are not satisfied, ask for a copy of the images on cd and take to a second doctor for another opinion. ...Read more

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If there was any blocked arteries in the brain, would it show on an MRI angio?

If there was any blocked arteries in the brain, would it show on an MRI angio?

Possibly: The larger vessels entering the crainum are often and well evaluated by mr angiography. As these vessel branch and travel to the brain matter they get progressively smaller. Some vascular problems can be seen even is some of these smaller arteries.
It cannot see microvascular disease. ...Read more

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I had TIAs 5 days ago. The CT scan showed that I had complete occlusion of the origin of the anterior cerebral artery. What are my options?

I had TIAs 5 days ago. The CT scan showed that I had complete occlusion of the origin of the anterior cerebral artery. What are my options?

Prevention: 1. Have your doctor check for numerous risk factors such as hypertension, hyperlipemia, diabetes, inflammation or arteries, hyperhomocysteinemia, cardiac disease, carotid stenosis, chance of emboli from distant source. In general if no emboli would use combination of Aggrenox and a statin for prevention. ...Read more

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What does a CT scan of the brain without contrast show?

What does a CT scan of the brain without contrast show?

Some things: CT scan of brain without contrast shows basic anatomy of brain, gray white matter differentiation, ventricles, and physiologic calcifications. Ventricles enlarged/ hydrocephalus, mass effect with displacement of normal structures, some bleeding, abnormal calcifications in tumors or old subdural hematomas, fractures. CT with contrast adds enhancement of certain lesions not seen, hyper/hypo vascular. ...Read more

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Can a regular CT scan in the ER miss things going on in or around the brain?

Can a regular CT scan in the ER miss things going on in or around the brain?

Possibly: Ct can be performed in a variety of ways to demostrate abnormalities f the structures in the skull. A standard non- enhanced study does not show certain changes in the brain or blood vesssels. If your doctor is concerned about these then additional imaging with tailored ct or MRI might be appropriate. ...Read more

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Brain scan with lots of white matter show on CT scan, why?

Brain scan with lots of white matter show on CT scan, why?

Not clear: Your question is not clear. White matter is normally present in the brain. Was there something specificly commented on about the white matter on your scan? ...Read more

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Can CT scan without contrast show brain aneurysm?

Unlikely: Ct scan without contrast is unlikely to show an aneurysm unless it is very large and is calcified. A ct angiogram is a better study to visualize an aneurysm. ...Read more

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Will a ct scan show whether I have a brain aneurysm?

Will a ct scan show whether I have a brain aneurysm?

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

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What happens if my CT scan didn't show the brain tumor?

What happens if my CT scan didn't show the brain tumor?

MRI: Mri with and without contrast is more sensitive for detecting tumors that ct is. ...Read more

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Non contrast CT scan show growing brain tumor, what is wrong?

Non contrast CT scan show growing brain tumor, what is wrong?

Need more evaluation: It is very difficult to diagnose a brain tumor on a non-contrast ct scan. I would recommend getting a brain MRI with contrast (called gadolinium). Mri takes a much better look at the brain than does ct. ...Read more

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Would a plain CT scan show an unruptured aneurysm in the brain?

Would a plain CT scan show an unruptured aneurysm in the brain?

Need contrast: Very difficult to see aneurysms in the brain without contrast. If you are concerned about this as a possibility you should ask your doctor about your risk. ...Read more

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Ct scan did not show brain tumor. Does that mean I'm in the clear?

No: Mri of the brain with gadolinium [contrst medium] may need to be performed... Before ruling out that you do not have brain tumor... ...Read more

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Ct scan shows mild brain atrophy & chronic white mater disease? Is this serious?

It depends.: In a young person that would be cause for concern. However, in elderly individuals these are common findings. ...Read more

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What kind of brain tumor would not show up on a CT scan? Why would it not be seen?

What kind of brain tumor would not show up on a CT scan? Why would it not be seen?

Many: Many types of brain tumors do not show up on ct scans, especially if it was done without IV contrast because they can look the same as normal brain tissue. Mri with and without gadolinium contrast is the best way to evaluate the brain for a tumor. ...Read more

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I did a ct scan with iodine would that show an unruptured brain aneurysm?

I did a ct scan with iodine would that show an unruptured brain aneurysm?

Maybe: Depending on the size and location of the aneurysm, it can be detected with a CT scan with iodine. However, brain aneurysms are detected more frequently and with smaller sizes with CT or MR angiography techniques. ...Read more

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How is a lhermitte duclos tumor detected? Would it show on CT scan of brain?

How is a lhermitte duclos tumor detected? Would it show on CT scan of brain?

Maybe: L'hermitte-Duclos disease is a very condition that is not cancerous by itself. Since the majority involve the cerebellum, that is not a strong point for CT imaging because of the bones. They get in the way. Under certain conditions it may be visible. MRI is now a days the way to go. ...Read more

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Can you please tell me if a CT scan of brain would show signs of Dyplastic gangliocytoma?

Can you please tell me if a CT scan of brain would show signs of Dyplastic gangliocytoma?

MRI is better: MRI is the best imaging study for dysplastic gangliocytoma. Many are visible on CT scans, but the abnormality is much better visualized and characterized on an MRI. ...Read more

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Can CT scan without contrast show any brain tumors?

Sometimes: Brain swelling, hemorrhage and mass effect can be noted on a head ct without contrast. Also, some tumors have calcification a which can be seen in a head ct. Smaller and lower grade tumors can sometimes be missed on a head ct without contrast. ...Read more

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What types of brain tumors won't show up on a CT scan?

What types of brain tumors won't show up on a CT scan?

Small low grade mass: Some small low grade tumors that have not incited vasogenic edema could be missed on ct scanning. The addition of IV contrast would improve visualization of some tumors, but ct has limits in resolution when compared to mri. These are not the tumors that cause profound symptoms, frequently these small tumors are found incidentally when patients have scans for other reasons. ...Read more

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I had a ct scan of my brain today. Is it normal to have a graph over top of the imagine then the next image without the graph shows a bright white spot?

I had a ct scan of my brain today. Is it normal to have a graph over top of the imagine then the next image without the graph shows a bright white spot?

What????: Would you strike out into the wilderness with no camping or hiking experience, & having never looked at a topographic or hiking map? And then you take a first look at the map and are immediately confused? So what do you do? Post a question on HikeTap? This is analogous, except the knowledge gap in medicine is way, way wider. Just relax and wait for the report. ...Read more

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Will a brain aneurysm show up on a plain CT scan of the head?

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 more

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Can an excess of CSF show up on a CT scan or MRI of the brain?

Can an excess of CSF show up on a CT scan or MRI of the brain?

If hydrocephalus: Imaging can demonstrate increased size of brain ventricles, which is indicative of increase in csf, as contrasted to brain tissue, due to pressure. ...Read more

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Is it possible for a CT scan of the head *without* contrast to show an unruptured brain aneurysm?

Is it possible for a CT scan of the head *without* contrast to show an unruptured brain aneurysm?

It is: Possible, but not probable. The aneurysm would have to be relatively large, and even then the noncontrast appearance may not be specific. ...Read more

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If a brain MRI shows no acute process but only a nonspecific signal change in left parietal, is it advisable to do a CT scan considering its risk?

Not necessary: It is not necessary to undergo a CT. Of course it would depend on why you had the MRI in the first place. Most of these findings that are called nonspecific are vascular spaces and not by themselves a cause to worry ...Read more

Dr. Sandra Eleczko
1 Doctor shared a insight

Computed Tomography (Definition)

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


Dr. Steven Busuttil
245 Doctors shared insights

Blocked Arteries (Definition)

Blocked arteries is a condition in which a person has decreased or no blood flow in one or more of his arteries, due to obstructions inside the artery such as thick plaques, floating clumps of broken plaques, blood clots, etc... Severe compression due to a problem on the outside of an artery can also ...Read more