Normative Ranges of Transcranial Doppler Metrics.

Objective: To determine normal ranges for traditional transcranial Doppler (TCD) measurements for two age groups (14-19 and 20-29 years) and compare to existing literature results. The development of a normal range for TCD measurements will be required for the development of diagnostic and prognostic tests in the future.

Materials And Methods: We performed TCD on the middle cerebral artery on 147 healthy subjects aged 18.