how to read a brain mri white spots?
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Nobody could really answer this question with the information you gave.  A fluid filled area (such as a cyst) can look white on a T2 MRI sequence, but can look much different on a T1 sequence or almost black on a FLAIR sequence.  An area that looks white on a FLAIR, can look darker on a T1.  So you would have to know on what sequence is it white.....\n\nTake your films or at least your report to your doctor, or better yet, a neurologist.  They should easily be able to answer your questions.  Remember, there are no dumb questions.  Good luck to you.
839426
It sounds like floaters.  If it is, then you have nothing to worry about.  Usually you'll notice them if you are looking at a white board or the sky.  Some people have lots, some people have a few, and some people never notice them.\n\nIf you're interested, floaters are caused from protein clumps in the jelly ("vitreous" in fancy talk) on the inside of your eye.  As you move your eyes, they slosh around and cast a shadow on your retina, which is what you can see.  If you hold your eyes really still, you'll notice they slow down and eventually disappear.\n\nAnother thing that is a possibility are "ocular migraines."  I would recommend that you get your eyes checked by your family eye doctor just to be on the safe side.
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http://www.webmd.com/hw/brain_nervous_system/nord640.asp\n\nWEB MD is a great site.
62108
Here you go .......\n\nhttp://www.yourmedicalguide.com/Brain-Disorders/Meningitis.htm?gclid=CMmTqMHQ5IICFQF5SQodDCVVjg
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Listen to me very carefully: I am a doctor. You need to go to a doctor immediatly and schedule an MRI and get the masses biopsied. Do this as soon as you read this PLEASE. Do not put this off PLEASE. Write me at mcc_md@yahoo.com if you have any questions about this answer or anything else medical.
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It means there is normal blood flow in those arteries, as moving blood in vessels appear as dark spots or "voids" on the MRI scan.
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Two supplementary colours give together the impression of white. Use a magnifying glass on your coloured t.v. screen and look at white places.
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Yes I have and it leaves a little round white mark. You will be OK try not to think about it. Waiting on test results are never fun.
133261
Magnetic resonance imaging (MRI), formerly referred to as magnetic resonance tomography (MRT) or nuclear magnetic resonance (NMR), is a method used to visualize the inside of living organisms as well as to detect the amount of bound water in geological structures. It is primarily used to demonstrate pathological or other physiological alterations of living tissues and is a commonly used form of medical imaging. MRI has also found many novel applications outside of the medical and biological fields such as rock permeability to hydrocarbons and certain non-destructive testing methods such as produce and timber quality characterization. [1] The devices used in medicine are expensive, costing approximately $1M USD per Tesla for each unit, with several hundred thousand dollars per year upkeep costs.\n\nMagnetic resonance imaging was developed from knowledge gained in the study of nuclear magnetic resonance. The original name for the medical technology is nuclear magnetic resonance imaging (NMRI), but the word nuclear is almost universally dropped. This is done to avoid the negative connotations of the word nuclear, and to prevent patients from associating the examination with radiation exposure, which is not one of the safety concerns for MRI. Scientists still use NMR when discussing non-medical devices operating on the same principles.\n\nAnimation of a series sections through a human brain from an MRI scan, starting at the top of the head and moving towards the base.Medical MRI most frequently relies on the relaxation properties of excited hydrogen nuclei in water. When the object to be imaged is placed in a powerful, uniform magnetic field, the spins of the atomic nuclei with non-zero spin numbers within the tissue all align in one of two opposite directions: parallel to the magnetic field or antiparallel. Common magnetic field strengths range from 0.3 to 3 Tesla, although research instruments range as high as 20 Tesla, and commercial suppliers are investing in 7 Tesla platforms.\n\nOnly one in a million nuclei align themselves with the magnetic field. Yet, the vast quantity of nuclei in a small volume sum to produce a detectable change in field. Most basic explanations of NMR and MRI will say that the nuclei align parallel or anti-parallel with the static magnetic field; however, because of quantum mechanical reasons beyond the scope of this article, the nuclei are actually set off at an angle from the direction of the static magnetic field.\n\nThe magnetic dipole moment of the nuclei then precesses around the axial field. While the proportion is nearly equal, slightly more are oriented at the low energy angle. The frequency with which the dipole moments precess is called the Larmor frequency. The tissue is then briefly exposed to pulses of electromagnetic energy (RF pulse) in a plane perpendicular to the magnetic field, causing some of the magnetically aligned hydrogen nuclei to assume a temporary non-aligned high-energy state. The frequency of the pulses is governed by the Larmor equation.\n\nIn order to selectively image different voxels (picture elements) of the material in question, orthogonal magnetic gradients are applied. Although it is relatively common to apply gradients in the principal axes of a patient (so that the patient is imaged in x, y, and z from head to toe), MRI allows completely flexible orientations for images. All spatial encoding is obtained by applying magnetic field gradients which encode position within the phase of the signal. In 1 dimension, a linear phase with respect to position can be obtained by collecting data in the presence of a magnetic field gradient. In 3 dimensions, a plane can defined by "slice selection", in which an RF pulse of defined bandwidth is applied in the presence of a magnetic field gradient in order to reduce spatial encoding to 2 dimensions. Spatial encoding can then be applied in 2D after slice selection, or in 3D without slice selection. In either case, a 2D or
447671
Not too sure if you're interested in this type of stuff. http://www.getbodysmart.com\nhttp://www.gwc.maricopa.edu/class/bio201/brain/brshpx.htm\nalso the bbc.uk website has some interactive stuff where you have to match the parts to where they belong.
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A link to a protocol from Alpco Diagnostics:\n\nhttp://www.alpco.com/pdfs/30/30-2201.pdf
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try looking up "Guillain-Barre Syndrome"
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Look up "Krebs cycle".
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Do you mean that the white areas on the page result gray ?\nIn this case you might use a completly black paper and insert it between the page you want to scan and the top cover of your scanner.
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http://www.vistaradiology.com/NewFiles/MRI.html
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Here is a discussion going on about this topic-\nhttp://www.halfbakery.com/idea/Weigh_20your_20own_20head\n\nPersonally I like the NMR method idea. I quote -\n" Using NMR you could measure the proton density within each 1mmx1mmx1mm voxel of your head. Then do the same for carbon and calcium and whatever else is in there (can you do this?). Then calculate the mass in each voxel and sum to get the total head mass. NB. This would only work if you don't have any large metal objects in your head, for which decapitation is the preferred method. However this would occur as a by product of the NMR scan anyway because of the magnets so it's a quite general method."
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Many possibilities:\n\nBoost it?  Just amplify the signal.  Can you get inside its circuitry?  Can you get a schematic for it?\n\nThe patient monitor transmitter is probably omnidirectional or close to it.  If its location can be fixed during the MRI, you could use a directional antenna on the transmitter and gain 20 to 30 dB.  You'd then have to point the transmitting antenna towards the reciever.\n\nLikewise, the recieving station is probably omnidirectional and could be made directional, but only if it is monitoring just the one patient.\n\nSimplest would be to move the transmitter and receiver as close as possible, just on opposite sides of the MRI room's wall.  See if that is enough.\n\nTrickiest would be some modification of that shielding wall for a wave guide.  To pipe the radio frequency through the wall. Hobbists use plastic pipe with metallic paint on the inside.  By take one or 90-degree bends within a shielded box, you could prevent MRI EMF from getting out while guiding the patient monitor signal from transmitter to receiver.\n\nThe MRI manufacturer or installer may have encountered this already.  Or the patient monitor manufacturer.\n\nInvite in a local Ham Club to check out the facility and the problem.  Those guys are often very very knowledgable, retired and donate their time for various good causes.  Call your local EMS, Red Cross or County disaster co-ordinator.  They work with volunteer Hams during real and simulated disastors.\n\nHope some of that helps.