Transcranial Doppler Ultrasound: A Review of the Physical Principles and Major Applications in Critical Care

Figure 4

The TCD waveform in raised ICP or brain stem death. This oscillating MCA waveform demonstrates antegrade systolic flow with retrograde diastolic flow, consistent with raised ICP or brain stem death. Reproduced from Nicoletto and Burkman [26]. Permission obtained. Copyright owner ASET (American Society of Electroneurodiagnostic Technologists), the Neurodiagnostic Society.