Fig. 2

The figure represents the transtemporal, transorbital, and suboccipital bone window and the normal curve of blood flow velocity with its pattern, depth, value, pulsatility, and resistance index. A Transtemporal window and middle cerebral artery in 55mm of depth. B Anterior cerebral artery in 74mm of depth. C Posterior cerebral artery in 59mm of depth. D Transorbital window and siphon artery in 70mm of depth. E Suboccipital window and Basilar artery in 80–110mm of depth