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What happens when you decrease the distance between two foci?
The answer depends on whether they are the foci of an ellipse or a hyperbola.
What happens when you increase the distance between two foci?
-- If they're the foci of a single optical system, then the result can't be stated in general.It depends on the curvatures and relative position of the lenses.-- If they're both the foci of the same ellipse, then the ellipse becomes more eccentric.That is, more squashed and less circular.-- If they're the foci of two parabolas, then there's no relationship between them, andnothing in particular depends on the distance between them.The answer depends on whether they are the foci of an ellipse or a hyperbola.
Can the foci's of and ellipse be outside the ellipse?
No.
How many foci does a hyperbola have?
2
What happen as foci of an ellipse get closer together?
The ellipse will become more circular until it becomes a circle when the two foci coincide.
Are T2 and Flair signal hyperintensities associated with the white matter in the brain?
yes
What is a T2 hyperintense foci?
Type your answer here... it is a T2 hyperintense foci
Why is T2 matter white in the brain?
T2 is seen as a foci of white spots on MRIs of the brain. They are associated with a number of disorders: normal aging, MS, etc.
What if your MRI scanned frontal and parietal white matter T2 hyperintensities what does this mean?
my husband has t2 intense foci in the subcortical white matter in the frontal and parietal reigon these are compatible with foci of chronic ischaemic change the finding is related to small vessel disease his mood swings are getting worse would this disease be a part of mood swings.
What is SCATTERED T2 hyperintensities of the liver?
scattered fluid-filled areas of the liver.
What is Two punctate foci of T2 hyperintensity in the subcortical white matter of the lateral anterior left frontal lobe?
Can hyponatremia cause white matter suggestive of minimal chronic microvascular ischemic change. The grey-white differentiation is maintained. minimal chronic microvascular ischemic on a brain scan?
What does T2 and Flair hyperintensities mean in a MRI scan?
T2 FLAIR Hyperintensity is when hyperintensity is seen via FLAIR (Fluid Attenuated Inversion Recovery) during the T2, or spin-spin, relaxation cycle. This process helps nullify natural fluid signals in the body to find plaques and lesions in the brain. Hyperintensity describes areas of high intensity in the brain during an MRI.
What does it mean the brain parenchyma shows periventricular T2 hyperintensity and a few scattered subcortical foci of increased T2 and flair signal intensity in the frontal lobes that are nonspecifi?
what does this mean? Impression: There are scattered foci of T2/FLAIR hyperintensity within the periventricular, deep and subcortical white matter. The findings are nonspecific but may be seen in mild to moderate small vessel ischemic changes. No evidence for acute infarct or hemorrhage.
What is T2 hyperintense?
Hyperintensities refer to areas of high intensity on particular types of magnetic resonance imaging scans of the hum an brain. These small regions of high intensity are observed on T2 weighted MRI images within cerebral white matter or subcortical gray matter.
What are punctate foci?
Punctate foci are 'lesions' on the brain, typically caused by unknown trauma to the brain or conditions where demyelination of brain tissue occurs. Punctate foci are identified by brain MRI, with and without contrast although using contrast normally provides a more accurate picture of all lesions. In layman's terms, punctate foci have also been described as 'popcorn calcifications' in the brain tissue. Some punctate foci are associated with normal aging process.
Few small ill defined irregular t2 flair hyperintensities subcortical white matter of bilateral frontal lobes ischemic demyelination is likely?
What treatment to be given in this case
What does it mean when there are multiple abnormal foci of high T2 signal scattered along the subcortical and periventricular region?
Your physician should explain you the protocol, but I can try to help a bit though i'd need more details. This is the protocol of a Magnetic Resonance scan (MRI, MRT, KST,... it has many names), i assume of your brain. They see multiple nodes that give a high signal on T2 images. Basically, they see nodes, and the fact that they light up on T2 tells you something about their contents. On T2 images, what lights up has a density about the same as water. About the subcortical and periventricular: this is just the region, subcortical = under the cortex. The cortex is the outer rim of your brain. Periventricular = around the ventricle, a ventricle is a chamber of cerebrospinal fluid in your brain. All things together, my guess (can only guess as i don't have more details and can't see the images), is that these are cysts.
