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

Figure 5

The TCD waveform in raised ICP or brain stem death. This MCA waveform demonstrates absent diastolic flow and small systolic spikes consistent with the late stages of 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.