What is a Doppler?
Colour Doppler ultrasound (or echo-Doppler) is an imaging examination that uses ultrasound waves to assess blood flow in the arteries and veins. It is non-invasive, painless, uses no radiation, and is performed at the clinic itself.
It is considered the gold standard for diagnosing vascular disease because it shows blood flow in real time, identifying blockages, reflux and other changes.
What it is used for
Varicose veins and venous insufficiency
Assesses how the valves work and identifies venous reflux.
Deep vein thrombosis (DVT)
Detects clots in the deep veins of the legs.
Peripheral arterial disease (PAD)
Identifies blockages in the arteries of the legs.
Carotid stenosis
Assesses the arteries of the neck and the risk of stroke.
Aneurysms
Measures the diameter of aortic and peripheral aneurysms.
Follow-up after treatment
Checks the result of surgeries and endovascular procedures.
How it is done
- Preparation: the patient lies down on a comfortable couch.
- Conducting gel: gel is applied to the area being examined.
- Examination: the doctor moves the probe over the skin, viewing the arteries and veins on a monitor.
- Duration: 20 to 60 minutes, depending on complexity.
- Report: handed over on the same day or within 1–2 working days.
Preparation and care
- No fasting is required (except for an abdominal Doppler)
- Wear comfortable clothes that allow access to the area
- Bring previous examinations for comparison
- Continue your usual medication normally
Who performs it
The examination is performed by the vascular surgeons at Clínica Fluxo, all of them with specific training in vascular ultrasound.