The study is performed with a 7.5-13 MHz. probe or, less frequently, with a 3.5-5 MHz. convex probe (useful in the study of deep districts).
Two diagnostic strategies are possible: the simplified compression ultrasound (s-CUS) and the complete compression ultrasound (c-CUS)/complete echocolor Doppler study.
In the s-CUS, with the supine patient, a simple transverse compression of the proximal veins (common femoral vein and popliteal vein) is performed. S-CUS is a first-level examination with high accuracy and sensitivity in the diagnosis of symptomatic proximal deep thrombosis, but it is a non-resolute maneuver because cannot diagnose distal deep thrombosis. For this reason, it is often necessary to repeat the maneuver after 7 days to exclude progressive distal vein thrombosis in proximal thrombosis.
Alternatives to s-CUS are: a) complete echo color Doppler study (morphologic / functional study of the iliac-caval district and of the veins of the lower limbs throughout the course; b) complete compression ultrasound (c-CUS) of the veins of the lower limbs throughout the course.
In this lesson, the methodology of the different diagnostic strategies of the study of deep veins of the lower limbs 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.