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.
Franco Accorsi, MD
Member of the Order of Physician of Bologna n° 6728
I am a specialist in Medical Angiology and I am based in Bologna, Italy. Until 2008 (voluntary resignation) I worked at Maggiore Hospital in Bologna as "Dirigente Medico" in the Department of Internal Medicine and as Angiologist in the Angiology Unit with a position of "Alta Professionalità" in "Vascular Ecography and Angiology".
I am currently working in Bologna as an independent professional in the areas of angiology and vascular diagnostics.
I have been a speaker at national and international courses/congress and I have taught duplex ultrasound method in GIUV and SIUMB courses at the Maggiore Hospital, Bologna and courses of echocolor Doppler of extracranial and intracranial arteries at the Stroke Unit of S. Maria Nuova Hospital, Reggio Emilia.