Right vertebral artery; Right vertebral artery
Basal artery ba; Basilar artery
Right middle cerebral artery; Right middle cerebral artery
Left vertebral artery; Left vertebral artery
Left middle cerebral artery; Left middle cerebral artery
Pulsation index
drag index
Peak speed peak
Average speed average
Diastolic blood flow velocity Dias (this is uncertain)
Ratio of systolic blood pressure to diastolic blood pressure
Bandwidth index SBI
Stenosis index STI