Doppler ultrasound of the veins of the lower limbs – Gdańsk
Phlebology · Venous Doppler ultrasound of the legs · Gdańsk
Doppler Ultrasound of Lower Limb Veins – Venous Circulation Diagnostics
Doppler ultrasound of the lower limb veins is a non-invasive examination that assesses vein patency, the direction of blood flow and the function of venous valves. It is an essential part of diagnosing venous insufficiency and planning varicose vein treatment.
At Wyspa Medycyny Przyjaznej in Gdańsk, phlebological diagnostics form the basis of individual treatment planning. Based on a consultation and duplex Doppler ultrasound, the doctor can assess whether venous reflux is responsible for the symptoms and whether conservative treatment, sclerotherapy or endovenous laser ablation (EVLA) is indicated.
What does the examination assess?
Vein patency, reflux, valve function and venous anatomy.
Is the examination painful?
Usually not. An ultrasound probe is placed on the skin, without needles or ionising radiation.
Does it require preparation?
Fasting is usually not required. Bring previous test results and a list of your medications.
Why is it needed before EVLA?
It helps identify incompetent veins and determine whether closing them is indicated.
What is Doppler ultrasound of the lower limb veins?
Doppler ultrasound, also known as duplex Doppler ultrasound, combines ultrasound imaging of blood vessels with an assessment of blood flow. This allows the doctor to see not only the course of the veins but also how blood flows through them.
In a normally functioning venous system, blood flows from the legs towards the heart. Venous valves help prevent blood from flowing backwards. If these valves do not function properly, venous reflux may occur, contributing to chronic venous insufficiency and varicose veins.
Doppler ultrasound helps answer three key questions: Are the veins patent? Is blood flowing in the correct direction? Which parts of the venous system show abnormalities?
Depending on the indication and examination protocol, superficial veins, deep veins and the connections between them may be assessed. The examination performed when thrombosis is suspected may differ from the detailed venous mapping carried out before varicose vein treatment.
When should you have Doppler ultrasound of your leg veins?
The examination may be indicated when symptoms suggest impaired venous drainage or as part of preparation for varicose vein treatment.
- visible, enlarged and twisted veins in the legs;
- a feeling of heaviness in the legs, especially after prolonged standing;
- recurrent or persistent swelling around the ankles;
- pain, a feeling of pressure or discomfort in the lower limbs;
- skin discolouration and other changes that may accompany chronic venous disease;
- varicose veins that have returned after previous treatment;
- planned sclerotherapy or endovenous laser treatment;
- follow-up after previous venous treatment, when recommended by a doctor;
- suspected venous thrombosis, which requires a separate and appropriately urgent diagnostic assessment.
Important: swelling, heavy legs and pain are not specific to venous diseases. They may have other causes. The doctor determines the indications and scope of the diagnostic assessment.
What can Doppler ultrasound detect?
Venous valve incompetence
The examination can identify abnormal backward blood flow, known as reflux, and determine its location and extent.
Incompetent superficial veins
The examination may assess the great and small saphenous veins, selected tributaries and perforating veins.
Thrombotic changes
Ultrasound allows the assessment of vessel patency and detection of thrombotic changes within the examined area.
Changes following previous treatment
Selected previously treated venous segments can be assessed, and potential causes of recurring symptoms can be investigated.
The examination findings should be interpreted together with symptoms, the clinical examination and medical history. Not every abnormality identified on ultrasound requires a procedure.
How is Doppler ultrasound of the lower limb veins performed?
- Medical history and purpose of the examination. The doctor asks about symptoms, previous episodes of thrombosis, varicose vein treatments, coexisting conditions and medications.
- Preparing the legs. The patient exposes the areas of the legs to be examined to allow proper access to the veins.
- Ultrasound examination. Gel is applied to the skin, and the doctor moves the ultrasound probe along the blood vessels.
- Blood flow assessment. Depending on the purpose of the examination, the doctor assesses patency, compresses selected vessels with the probe and performs manoeuvres to assess reflux.
- Mapping venous insufficiency. When planning varicose vein treatment, part of the examination may be performed while standing or in another position that allows accurate reflux assessment.
- Discussing the results. The doctor explains the significance of the findings and recommends further management.
The examination requires neither a skin incision nor contrast administration. Temporary discomfort may occur when pressure is applied with the probe, particularly in painful areas.
How to prepare for Doppler ultrasound of the leg veins
Fasting is usually not required before a standard Doppler ultrasound of the lower limb veins. No special dietary preparation is necessary.
- wear clothing that allows easy access to your legs;
- bring previous Doppler ultrasound reports and documentation of varicose vein treatment;
- prepare a list of medications, particularly anticoagulants;
- inform the doctor about previous thrombosis, operations and venous procedures;
- if you use compression therapy, follow the instructions you have received regarding compression stockings;
- do not stop taking any medications on your own before the examination.
If the examination is part of preparation for EVLA, the doctor may specify additional requirements related to treatment eligibility.
When should you not wait for a routine Doppler ultrasound appointment?
Sudden swelling of one leg, new pain in the calf or thigh, warmth and redness of the limb may indicate deep vein thrombosis (DVT). These symptoms require urgent medical assessment and an appropriate diagnostic pathway.
If thrombosis is suspected, the doctor assesses the clinical probability and selects appropriate tests, including D-dimer testing and suitably urgent venous ultrasound. You should not postpone diagnostic assessment until a routine phlebology appointment.
Sudden shortness of breath, chest pain, coughing up blood or fainting may be signs of pulmonary embolism. In such cases, call emergency services on 112.
Doppler ultrasound before EVLA laser treatment of varicose veins
Duplex Doppler ultrasound is an essential part of planning endovenous laser treatment of lower limb varicose veins. It allows the doctor to map incompetent veins, locate reflux and determine the scope of a potential procedure.
During the phlebology consultation, the doctor reviews the ultrasound results and assesses whether the patient is suitable for endovenous laser ablation (EVLA/EVLT).
In some cases, conservative management or another treatment method may be more appropriate. If additional varicose veins require treatment alongside an incompetent main venous trunk, sclerotherapy may also be considered. The combination of EVLA and sclerotherapy is known as hybrid treatment.
Not every patient with varicose veins needs laser treatment. Eligibility depends on ultrasound findings, symptoms, venous anatomy and individual indications.
Learn about endovenous laser treatment of varicose veins in Gdańsk →Phlebology diagnostics at Wyspa Medycyny Przyjaznej
Arthur Abbazov, MD – Phlebologist
At Wyspa Medycyny Przyjaznej in Gdańsk, Dr Arthur Abbazov provides consultations for venous diseases of the lower limbs and assesses patients for varicose vein treatment, including EVLA and, when indicated, sclerotherapy.
Clinical assessment and duplex Doppler diagnostics form the basis of the treatment plan. The examination findings help determine whether the symptoms may be caused by venous insufficiency and which vessels may require treatment.
View the doctor's profile →Wyspa Medycyny Przyjaznej
Gdańsk, ul. Toruńska 15, unit AU1
Doppler Ultrasound of Lower Limb Veins – Frequently Asked Questions
Can Doppler ultrasound of the leg veins detect thrombosis?
Yes. When performed using the appropriate protocol, ultrasound can detect thrombotic changes in the examined veins. Suspected acute thrombosis requires urgent medical assessment and the appropriate diagnostic protocol.
Are Doppler ultrasound and standard ultrasound the same?
Not exactly. Standard ultrasound provides images of tissues and blood vessels. Doppler additionally enables the assessment of blood flow. A duplex examination combines both techniques.
Is venous Doppler ultrasound performed while standing?
The standing position is often used when assessing venous reflux. A different position may be used when assessing vein patency or suspected thrombosis. The examiner chooses the position according to the purpose of the examination and the patient's abilities.
Do I need to fast?
No. Fasting is usually not required for a standard Doppler ultrasound of the lower limb veins. If your consultation includes additional tests, follow the instructions provided.
Is the examination safe, and can it be repeated?
Ultrasound does not use ionising radiation. It is a non-invasive examination that can be repeated when clinically indicated, including for monitoring treatment.
Is Doppler ultrasound necessary before laser treatment of varicose veins?
Yes. Duplex Doppler is the primary examination used to plan EVLA, identify incompetent venous segments and assess vascular anatomy.
Are arterial and venous Doppler ultrasound the same examination?
No. These examinations assess different parts of the vascular system. Arterial ultrasound evaluates arterial blood flow, while venous ultrasound is used, among other things, to assess vein patency and valve incompetence. When booking, specify that you need a venous ultrasound of the lower limbs.
Does a normal Doppler ultrasound result rule out all causes of leg swelling?
No. Doppler ultrasound evaluates selected aspects of the venous system, and its scope depends on the indications. Swelling may also result from lymphatic or systemic causes and other conditions requiring separate investigations.
Can both legs be examined?
Yes, the examination may cover one or both legs. Its scope is determined by the symptoms and purpose of the examination. When booking, confirm what is included in the appointment and its price.
How much does Doppler ultrasound of the lower limb veins cost in Gdańsk?
The price depends on the scope of the examination and type of consultation. Before your visit, the reception team will confirm the current fee and whether the examination covers one or both legs.
Book a phlebology consultation and leg vein diagnostics in Gdańsk
If you have varicose veins, swelling, a feeling of heavy legs or need an assessment before EVLA, contact Wyspa Medycyny Przyjaznej. When booking, mention that you require venous diagnostics of the lower limbs and confirm the scope of your appointment.
Wyspa Medycyny Przyjaznej · ul. Toruńska 15, unit AU1 · Gdańsk
Related services and information
Learn how an incompetent vein is closed using laser energy and how hybrid treatment works.
Varicose veins of the lower limbsSymptoms and situations in which a phlebology consultation is recommended.
Doppler ultrasound before varicose vein treatmentA guide to preparing for the examination and understanding its role in treatment eligibility.
Medical information and references
Medical content: Arthur Abbazov, MD, Phlebologist
Medical review: Piotr Rak, MD, PhD. Last updated: 5 November 2026
- NICE CG168 – Varicose veins: diagnosis and management. Recommendations for duplex Doppler ultrasound and planning varicose vein treatment.
- NICE NG158 – Venous thromboembolic diseases. Diagnosis of suspected deep vein thrombosis.
- NHS – Varicose veins. Symptoms, diagnostics and treatment options.
This content is for informational purposes and does not replace a medical consultation, clinical examination or individual diagnostic assessment. The type and scope of ultrasound and further management depend on clinical indications. If symptoms suggest acute thrombosis or pulmonary embolism, seek medical assistance immediately.