Turk Neurosurg
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Computed tomography perfusion (CTP) has recently been used to identify regions of potential ischemia due to cerebral vasospasm, and CTP parameters are able to quantitatively evaluate brain parenchymal perfusion. We performed a meta-analysis as an update of a previous paper published in 2010 and aimed at evaluating the diagnostic accuracy of CTP and CTP parameters for vasospasm after aneurysm rupture. ⋯ CT perfusion has a great diagnostic value to detect cerebral vasospasm compared with DSA in patients with aneurysmal subarachnoid hemorrhage (aSAH). As CTP parameters, CBF and MTT quantitatively evaluate brain parenchymal perfusion.