Mean time ambulatory emboly counting for stroke risk evaluation. – EMBOLTER

The cerebral infarctus (stroke) are caused by emboli generated eg carotid stenosis.
These strictures emboligenic emboli produce more or less continuous even for some low significant stenosis and asymptomatic.
Asymptomatic stenosis will generally not treated except in cases where the embolic nature is proved.
The difficulty is that embolic nature is difficult to evaluate, take time in costly equipment and specialized operator required to monitor the record and reposition the sensor.
The result is not always reliable. Work in progress show that 2 sessions of 8 hours of monitoring generation of emboli by transcranial Doppler are necessary for this diagnosis.

The project objective is to propose a prototype of Holter embolus, with a recorder of transcranial Doppler signals and a tracking system offsetting movements of the sensor. An analysis workstation performs post processing of record, with optimizations that can be made through the coercion of real time.

The proposed algorithm has some post-processing, supported by the U930, a Doppler electronics / control and software supported by Atys, a mechanical part supported by Atys with the support of a specialist subcontractor micro-mechanism and a clinical validation part supported by the team of the University Hospital of Lille.

The highlight of this project is the complementary expertise of three partners who can meet all challenges.