What is Vascular Ultrasound?
Vascular ultrasound combines conventional imaging with Doppler blood-flow assessment. It can evaluate arterial narrowing, venous reflux, deep vein thrombosis, carotid disease and dialysis access without radiation.
The referring question should state the symptoms, side and suspected disease. Results are most useful when a vascular surgeon correlates waveform and flow findings with pulses, wounds, swelling and the wider medical history.
Why Vascular Ultrasound Happens
Vascular ultrasound is a diagnostic service that uses sound waves and Doppler to show vessel structure and blood flow. It can look for arterial narrowing, DVT, venous reflux, carotid disease and dialysis-access problems without ionising radiation.
Who May Be More at Risk?
There is no radiation exposure, and most scans need no injection. Accuracy depends on the clinical question, the vessels examined and technical factors. A general soft-tissue ultrasound is not a substitute for a dedicated arterial, venous reflux, DVT, carotid or access study.
Common signs and symptoms
- Leg pain, swelling or visible veins
- Suspected DVT
- Cold foot or poor pulses
- Dialysis access or carotid assessment
How it may be evaluated
- Arterial Doppler
- Venous reflux or DVT scan
- Carotid Doppler
- Dialysis access mapping
Treatment options
- No radiation
- Usually no injection
- Real-time flow information
- Results interpreted with clinical findings
What Can Help Before and After Treatment?
Follow the preparation instructions for the exact scan. Most limb and carotid Doppler studies require little preparation, while abdominal vascular studies may require fasting. Bring earlier reports for comparison and wear clothing that allows access to the area being examined.
What Can Happen Without Appropriate Care?
The test itself does not treat disease, but delaying appropriate imaging can delay diagnosis of a clot, threatened limb or failing dialysis access. A normal scan also needs interpretation alongside symptoms and examination because not every cause of pain or swelling is vascular.
