Prolonged Cerebral Circulation Time Is the Best Parameter for Predicting Vasospasm during Initial CT Perfusion in Subarachnoid Hemorrhagic Patients
Fig 3
Correlation between cerebral circulation time defined by CT perfusion and cerebral circulation time defined by digital subtraction angiography.
Correlation between (A) CT-CCTA2 and XA-CCTRA2; (B) CT-CCTA2 and XA-CCTLA2; (C) CT-CCTRM2 and XA-CCTRM2; and (D) CT-CCTLM2 and XA-CCTLM2. Y axis: CT-CCT, X axis: XA-CCT. CT-CCT: Cerebral circulation time defined by CT perfusion. XA-CCT: Cerebral circulation time defined by digital subtraction angiography. The subscripted abbreviations following CT-CCT and XA-CCT show different arterial ROIs used to calculate circulation time. RA2: second segment of right anterior cerebral artery; RM2: second segment of right-middle cerebral artery; LA2: second segment of left anterior cerebral artery; LM2: second segment of left-middle cerebral artery.
