Doctor insights on:
What Does A Brain Ct Scan Show
Would a CT scan show cysts in the brain? If so, would a dr mention them if seen during a brain CT scan after a head injury from a car accident?
Yes: CT would show cysts, although cysts are uncommon. Did you have some bleeding into the brain after the accident? The report would mention cysts if any are present. ...Read more
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
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
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
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
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
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
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
It depends.: In a young person that would be cause for concern. However, in elderly individuals these are common findings. ...Read more
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
Is it possible for a CT scan of the head *without* contrast to show an unruptured brain aneurysm?
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?
Can a CT scan with out contrast show if someone has a significant amount of blood in the brain from a ruptured anurysm?
Yes: A very good modality to see fresh blood is a non-contrast ct scana. ...Read more
3 MRIs in 3 mos show a growth on brain stem medulla. CT Scan with contrast 2 wks after last MRI shows no enhancement. Why is that?
No enhancement: Due to they type of tumor you have. Need more details. ...Read more
If I had a MRI oct2012 & cat scan in dec 2012 & both where normal should I b worried bout a brain tumor? Can a CT scan show a brain tumor n the brain
No worry: Very unlikely you would have a brain tumor, and not have it show up on the tests you mention. Very unlikely it would develop since then. ...Read more
What would cause sinus disease to show up on a CT scan? I don't have any sinus-related issues. And what effect would sinus disease have on the brain, if any? Would it cause brain injury?
Description: Many people have low level sinus inflammation often secondary to allergic sinusitis, or prior upper respiratory tract infections. The CAT scan is sensitive to these often subtle findings. This does not necessarily equate to full blown sinus infection. Usually these issues do not effect brain whatsoever. ...Read more
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