In presence of peripheral arterial atherosclerotic disease, it is necessary to detect and describe the stenosis, the occlusions and the aneurysms.
In the hemodynamic stenosis, although duplex ultrasound includes images, the primary parameter is the peak systolic velocity: a high-velocity systolic and diastolic signal is revealed over the stenotic segment.
The peripheral arterial occlusion is characterized by the absence of the color and of the spectral Doppler waveform within the arterial segment occluded. The waveform recorded distal to the occlusion is monophasic, in the absence of reversed component.
The ultrasound imaging is the initial non-invasive diagnostic modality used to study the peripheral artery aneurysms: the echocolor Doppler may demonstrate swirling flow within the aneurysm or no color flow if it is completely occluded.
In this lesson the echocolor Doppler characteristics of the peripheral arterial atherosclerotic disease are 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.