Intracranial Stenosis

In the hemodynamic intracranial stenosis the main echocolor Doppler findings are: local flow acceleration, disturbed flow with spectral broadening in the region of the stenosis and reduced maximum and mean flow velocities distal to the stenosis.

Transcranial color Doppler (TCCD) is useful for ruling out intracranial stenosis but less reliable for ruling in this pathology, therefore, TCCD should ideally be used as the initial screening tool.

Intracranial atherosclerotic stenosis is a dynamic lesion: such dynamicity is the result of various processes, including superimposed thrombus formation, intraplaque hemorrhage and increase in atherosclerotic growth. These dynamic processes imply a need for surveillance with a non-invasive technique: the possibility of studying and monitoring the intracranial vessels using TCCD in real time is important for diagnosis, prognosis and therapy.

In this lesson the echocolor-Doppler findings of the intracranial stenosis will be presented.

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