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Major Intracranial Vascular Flow Voids
What does this mean: flow void is identified in major intracerebral blood vessels. Small prominent perivascular spaces in inferior basal ganglia bil?
MRI vertebrobasilar hypoplasia right side theres robust flow void anastomosing the basilar artery w cavernous portion of internal carotid artery/mean?
Normal variant: The arteries at the base of the brain can course in several different patterns but ultimately get the job done, that is, supply brain tissue. Your pattern is like your fingerprint. Some more unusual patterns have an increased association with aneurysms, but this would have likely been described if present and vertebro basilar hypoplasia, as in the picture, is pretty common. ...Read more
Hypertensiveretinopathy with hypertensiveretinopathy with a marked degree of sclerotic vascular changes, some tortuosity, venous dialation. Discs/ mac
Do beta-blockers decrease cerebral blood flow? What meds increase cerebral blood flow through cerebral vasodilation?
MRI and MRA brain: Yes, an MRI can visualize blood vessels but not well; an MRA (MR angiogram) is the optimal MR test. It uses gadolinium which is not a radio-iodine and is not kidney toxic. Gadolinium can be eliminated slowly however, if a person has kidney impairment, and then the gadolinium can enter dermal tissues. Radiologists are aware. ...Read more
Yes: The short answer is yesGet a more detailed answer ›
Not exactly: The flow to the anterior cerebral starts at the heart, goes up the ascending aorta, to carotid arteries which reach the Circle of Willis, and go to anterior cerebral, middle cerebral and posterior cerebral arteries. Anterior communicating can be viewed as a bridging collateral. ...Read more
Mild diffuse atherosclerotic plaques are seen w in internal carotid arteries. No hemodynamically significant carotid stenosis per ratio criteria?
Unusual: Typically carotid artery disease causes stroke or TIA by embolic phenomena where a plaque rupture induce clots that travels to the brain. Due to extensive blood flow to brain from two carotid arteries and two vertebral arteries, it's unusual for chronic occlusion in one artery to cause symptoms but it can especially with more proximal occlusion , this can be corrected with bypas surgery or stent. ...Read moreSee 1 more doctor answer
How much little?: Extremely vague. Are you asking about a little decreased? Moderately decreased? "Lack" means none. That's called brain death. Brain death is the same as death. A patient who is brain-dead is legally dead. Physicians don't need to clear it with family or anyone else to turn everything off. This is why establishing brain death is done with great care & according to a strict uniform protocol, ...Read moreSee 1 more doctor answer
What's the difference between a cerebral vascular accident (stroke) & a transient ischaemic attack (tia)?
Definitive damage: A TIA describes stroke like symptoms that resolve without other intervention within a short timespan, usually less than 1 hour although the classic definition uses 24 hours. A stroke describes irreversible brain tissue damage caused by a lack of blood flow (technically a bleed is also a form of stroke). This damage can be diagnosed definitively on a MRI scan, no such damage can be seen in the tia. ...Read moreSee 2 more doctor answers
Had a doppler for the carotid arteries and the conclusion is:accelerated blood flow, reversed blood flow above the carotid bifurcation?Is this serious?
Yes. Call Now!: Patients who have had carotid artery surgery definitely have a risk of stroke. The highest risk of stroke is during and immediately after the procedure and is generally quoted at about 2%. If you are experiencing any signs of stroke and have had recent carotid surgery call your surgeon immediately or go to the emergency room. Difficulty speaking or weakness on one side of the body would be the most common complaints. ...Read moreSee 2 more doctor answers
Is an external hydrocephalus consequence of brain atrophy ? Does external hydrocephalus make intracranial pressure ?
Hydrocephalus: Hydrocephalus is a disorder where there is an increase in cerebral spinal fluid and subsequent dilatation of the internal spaces of the brain. It can be caused by obstruction of the circulation of the fluid or decreased absorption. Intracrania pressure is increased. However with brain atrophy due to loss of tissue these spaces appear dilated but the pressure is normal. There is no fluid increase. ...Read more
Please explain why is pulmonary arterial blood pressure less than systemic arterial blood pressure?
PAP: The resistance to flow of blood is much lower in the lung than in the systemic circulation, this is why the pa pressure is normally lower than systemic pressure, the blood flow in both circuits is normally the same and pressure equals flow times resistance. ...Read more
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- What does it mean appropriate flow void in the major cerebral vessels?
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