The TCD hyperemia index to detect vasospasm and delayed cerebral ischemia in aneurysmal subarachnoid hemorrhage.
Yongwoo KimAmit MehtaReshmi NairDaniel R FelbaumJeffrey C MaiRocco A ArmondaJason J ChangPublished in: Journal of neuroimaging : official journal of the American Society of Neuroimaging (2023)
Lower HI was associated with a higher likelihood of vasospasm and DCI. HI <1.2 may serve as a useful TCD parameter to indicate vasospasm and DCI when elevated MFV is observed, or when transtemporal windows are inadequate.