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by arkades
2999 days ago
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When a clot blocks off blood flow to an area of the brain you expect that area to die and, as a result, lose its function (“clinical deficit”). The blockage is an infarct; the downstream area suffocating is infarcted. When you look at the area of brain that should be downstream of a clot and therefore nonfunctional, that’s the “infarct volume”. It’s the volume of brain that we believe is infarcted. The “mismatch” is when we do a CT, find that, say, the chunk of your brain that moves your right hand is downstream from the infarct, but your right hand is still working. This suggests that that part of your brain has enough blood coming to it from other, less salient, arteries that it’s dying slowly instead of fast. That “mismatch” area is the one that, if we can go in and surgically pull out the clot, we can save. |
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