Echocolor Doppler of the Intracranial Vessels: How To Do It and Normal Findings

The transcranial color Doppler is a non-invasive ultrasonographic technique that allows the study of cerebral parenchymal and intracranial vascular structures.

It is possible to study the direction and the blood flow velocity of the large intracranial arteries.

To study the intracranial arteries a sector transducer 2-3 MHz. is used. Through the transtemporal window it is possible to study the siphon, the middle cerebral artery, the anterior cerebral artery, the posterior cerebral artery and the top of basilar artery.

Through the occipital window it is possible to study the intracranial vertebral arteries and the proximal portion of basilar artery.

In particular, the echocolor Doppler of the intracranial vessels is useful for screening the intracranial stenosis and occlusion in patients with cerebrovascular disease. 

In this lesson the basic methodology of the echocolor Doppler study of the intracranial vessels is presented.

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