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Insights into Imaging
Fig. 5 | Insights into Imaging

Fig. 5

From: Comparison of CT and MR imaging in ischemic stroke

Fig. 5

Acute ischemic stroke due to obliteration of the left ICA and MCA. a Non-contrast CT is practically normal, with no hypodense areas and no mass effect present. b CBF map shows hypoperfusion (colder colours) in the region of the left MCA. c CBV map with only subtle differences between left and right hemispheres. d TTP map displays a significant delay in the region of the left MCA due to collateral flow. e CT angiography displays obliteration of the left MCA. ACI, internal carotid artery; MCA, middle cerebral artery; CBF, cerebral blood flow; CBV, cerebral blood volume; TTP, time-to-peak

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