While there are a number of operating systems on the market today, perhaps the most effective one for online gaming is Windows 7, as it supports high-quality graphics rendering and effective use of system resources.
Answer from Ted Lowenkopf, M.D. , medical director of Providence Stroke Center: Yes, you can have a stroke and not know it. A stroke's effects can be undetectable if the stroke is small or if the tissue damaged does not serve a critical function. Evidence of the stroke would show on a CT scan or an MRI of the brain, but it might not produce symptoms. But you really may be asking if a stroke can occur without your realizing, at the time, that it's happening â such as when you are asleep or when the effects are minor. Letâs look at those two scenarios separately.
Magnetic resonance imaging (MRI) has some advantages in stroke diagnosis. In a Lancet study, MRI accurately diagnosed 83% of acute strokes (that is, strokes in progress), while computed tomography (CT) scans diagnosed only 26%.Still, MRI is unlikely to replace CT scans for speedy diagnosis of acute stroke anytime soon.For one thing, while most emergency departments can quickly order a CT scan for suspected stroke patients, fewer have rapid access to MRI. MRI is also more expensive than CT and takes longer to do.till, MRI is unlikely to replace CT scans for speedy diagnosis of acute stroke anytime soon. For one thing, while most emergency departments can quickly order a CT scan for suspected stroke patients, fewer have rapid access to MRI.