Elevated Flow Velocity in Transcranial Doppler: Discrepancies Between Actual Vasospasm Locations and Flow Measurements.

ABSTRACT:

Background

Transcranial Doppler (TCD) is widely used to predict cerebral vasospasm in patients with subarachnoid hemorrhage by monitoring mean flow velocity (MFV) in major cerebral arteries. However, its accuracy in identifying specific arteries affected by vasospasm remains unclear. This study investigates the correlation between elevated MFV and the actual location of vasospasm, considering the influence of adjacent artery vasospasms.

Methods

We conducted a retrospective observational study of patients with subarachnoid hemorrhage who underwent transcranial Doppler monitoring and subsequent angiography between March 2017 and December 2020. The primary exposure was the maximum MFV recorded in the middle cerebral artery (MCA), anterior cerebral artery (ACA), and intracranial

SUBMITTER: Kim Y 

PROVIDER: S-EPMC12697591 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature