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Does Brain Mri Show Old Stroke
Mri or magnetic resonance imaging is one of the more recently developed imaging modalities available to physicians. It uses powerful magnets to generate images. There is no ionizing radiation which is a major advantage over many other modalities. Mri is the best imaging exam that we have for most soft tissue and joint related problems. There are radiologists ...Read more
Think about it, Remy: Whatever would you do brain MRIs for if they didn't show "damage"? The difficulty here lies with your terminology. Brain "damage" is so vague as to be essentially meaningless. MANY disease processes can afflict the brain, & the MRI appearance of "damage" is distinctive depending on the kind of "damage" it is. Neuroradiologists interpret the "damage" all day long. I'm very grateful that they exist. ...Read more
Sometimes: Damage to the hippocampus may show up on MRI, especially if it is the reason the MRI is done- so that the hippocampus is examined in detail. Keep in mind though that extensive damage is ordinarily needed to show up on the MRI, and small disruptions may not show up. So there can be a damage and a normal MRI, unfortunately. ...Read moreSee 1 more doctor answer
Alzheimer MRI: When a person has Alzheimers disease for a long time, there may be accelerated atrophy (shrinking) of the brain, inconsistent with their age, which may show up on MRI. At earlier stages of Alzheimers, the changes that are occurring happen within cells of the brain, and these are too small to be seen in a picture of the brain. The MRI is best for finding stroke, MS or other diseases. ...Read moreSee 1 more doctor answer
Usually: An MRI is probably the best way to detect a brain tumor in a patient who has symptoms or findings on a medical examination that suggests a brain tumor may exist. Getting an MRI if you are asymptomatic(have no medical issues) is unwarranted and should not be done. ...Read moreSee 2 more doctor answers
Only if large enough: MRI with contrast has a resolution limit of about 5 mm, depending on the field strength of the magnet & the spin sequence performed (resolution of time-of-flight MRI or TOF-MRI is even worse). The "gold standard" for an aneurysm is a fluoroscopic angiogram of the brain, which only interventional neurologists or radiologists perform 4 (1) known stroke or (2) genetics. Use HealthTap Prime to discuss ...Read more
No: Imaging studies do not show "everything". For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Get HPV vaccine. ...Read more
Stimulants: Stimulants such as Cocaine and amphetamine exert their effects on the user's nervous system and change the user's emotions, behavior, and affects cognition. They may cause miicrovascular ischemic disease of the brain which is unlikely to be detected by MRI or ct scan. ...Read moreSee 1 more doctor answer
What areas of brain does "mri brain stem w/o dye" image or cover?Is mra included in above and does it like mra image or look for cerebral aneurysm?
Whole brain stem: The MRI would look at your entire brainstem, shown in the picture. The brainstem is the lower part of your brain that controls breathing and heartrate. An mra (magentic resonance angiogram) is not the same, and would be ordered as a separate test with dye injection. An mra looks at blood vessels for aneurysyms, obstructions, or tears, while an MRI looks for tumors, demyelination, or strokes. ...Read moreSee 1 more doctor answer
Headaches somewhat frequently. MRI brain normal. Go for MRA Brain or MR Spectroscopy of the brain? or MRI other parts? I get free MRI/MRA services.
MRA for h/a: MRA would show even small aneurysms, so if you are concerned it may add some additional information about the vessels, including small or stenotic vessels and the carotids. Also consider thyroid, diabetes, musculoskeletal strain ,eyestrain from computer, allergies,sinusitis, food intolerances ( MSG is classic), mitral valve prolapse,hydrocephalus should have been seen on MRI,and migraines. ...Read more
Nope: Sometimes you can see evedence of bleeding. With traumatic brain injury sufficient to cause changes on ct typically survival is markedly reduced. Certain types of MRI done at the right time following a brain injury can sometimes show evidence of cerebral contusion. Much of the damage done with traumatic brain injury is microscopic (too small even with diffuse axonal injury) to be seen on mri. ...Read more
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