DIAGNOSE STROKE: Blockage of blood supply within the brain can be ischemic or hemmoragic. Embolic stroke is common from atrial fibrillation of the heart. Diseases such as alzheimers or frontal-temporal dementia can be diagnosed with positron emission tomography using a tiny dose of radioactive sugar. Blood flow is measured indirectly by the pattern of brain metabolism.
Answered 7/5/2012
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