Microembolus Signal using Trancranial Doppler Ultrasound (TCD)

In monitoring system using Transcranial Doppler (TCD) ultrasound in stroke detection, the occurence of microembolus can happen at different branch of arteries, i.e. middle cerebral artery (MCA), internal cerebral artery (ICA) and posterior cerebral artery (PCA). Microembolus event that can be observed through the audible sound of ‘chirp’, ‘moan’ or ‘click’ is the risk factor that cause blockage in the blood vessel. The TCD signals collected are presented here.