diffusion Water compries approximately 70% of the proboscis. Water molecules ar in constant random motion called diffusion. Diffusion is a physical property of molecules referring to their ability to move randomly in relation to their thermal energy. Diffusion weighted imaging has desex its greatest impact on the imaging evaluation of ischemic stroke. It is a new and efficient method that detects acute ischemic stroke much earlier than conventional T2-weighted MRI and computed tomography. DWI is contact to distinguish the location and extent of the ischemic area inwardly one hour following onset of a stroke.
By comparison, conventional MRI and CT are sensitive in detecting hemorrhage from infarction and brain ischemia, but non until some(prenominal) hours after onset. Diffusion-weighted imaging detects the slowing of water molecules that occurs during the beforehand(predicate) stages of a stroke. It measures the unclutter movement of water molecules in the body due to thermal energy (Brownian motion...If you want to get a full essay, parliamentary law it on our website:
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