The echocolor Doppler is an excellent tool in screening for carotid dissection defined as the splitting of the arterial wall of the carotid artery.
Carotid artery dissection is associated with hematoma in the wall of the artery. The intramural hematoma can expand towards the intima (resulting in a stenosis of the artery), or the adventitia (resulting in an aneurismal dilatation of the artery).
In the internal carotid artery (ICA) dissection, the main ultrasound findings are:
a) an arterial luminal flap or false lumen (the most specific sign);
b) bulbar and/or proximal ICA hematoma or low-reflective thrombus with or without narrowed true lumen;
c) bulb and origin of ICA with high resistance flow pattern to a stenotic hematoma in the cervical ICA segment not explored directly with the ultrasound ("indirect" sign).
In this lesson the echocolor Doppler findings of the carotid artery dissections will be 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.