Leg pain when walking
Cramping, aching, tightness or heaviness in the calf, thigh or buttock that improves with rest can be a circulation-related symptom known as intermittent claudication.
A combined peripheral arterial Doppler ultrasound and Ankle Brachial Pressure Index (ABPI) assessment to investigate leg pain, cramping, cold feet, poor circulation and suspected Peripheral Artery Disease (PAD). This private leg circulation test checks both the structure and flow pattern of the leg arteries and compares ankle-to-arm pressure readings to support a clearer PAD assessment. Performed by experienced vascular specialists at London Private Ultrasound.
Clinically reviewed by Mr Pedram Aghaei, Vascular Scientist, and Dr Babak Soleimanpour, Medical Director. Patient information only; your clinician will explain findings and next steps after the scan.
Peripheral Arterial Doppler Ultrasound + ABPI combines detailed ultrasound imaging of the leg arteries with blood-pressure ratio testing at the ankle and arm. It helps detect reduced blood flow, arterial narrowing, blockage patterns and signs of Peripheral Artery Disease, especially in patients with leg pain on walking, cold feet, diabetes, high blood pressure, high cholesterol, smoking history or slow-healing wounds.
A Peripheral Arterial Doppler Ultrasound + ABPI scan can be useful when symptoms or risk factors suggest reduced blood flow to the legs or feet. The scan helps assess whether arterial narrowing, blockage or poor circulation may be contributing to your symptoms.
Cramping, aching, tightness or heaviness in the calf, thigh or buttock that improves with rest can be a circulation-related symptom known as intermittent claudication.
Feet or toes that feel unusually cold, look pale, blue or mottled, or show reduced warmth compared with the other side may need vascular assessment.
Reduced circulation can sometimes contribute to altered sensation, weakness, fatigue or reduced walking distance, especially in patients with vascular risk factors.
Foot ulcers, toe wounds, skin breaks or infections that are slow to heal may need assessment of blood supply before treatment planning.
People with diabetes, previous or current smoking, high cholesterol, high blood pressure or heart disease have a higher risk of Peripheral Artery Disease.
This scan may be advised when pulses feel reduced, ABPI has been abnormal, PAD is suspected, or follow-up is needed after previous vascular findings.
Sudden severe leg pain, a cold pale foot, new weakness, loss of sensation, or sudden colour change can be urgent. If symptoms are sudden or severe, seek urgent medical advice or emergency care rather than waiting for a routine scan appointment.
This page is written to answer the key patient questions clearly: what the scan checks, who it is for, how much it costs, where it is available, and what happens after abnormal results.
A Peripheral Arterial Doppler Ultrasound + ABPI scan is used to assess whether enough blood is reaching the legs and feet. It can help identify arterial narrowing, reduced flow, abnormal Doppler waveforms and pressure differences between the arms and ankles.
London Private Ultrasound provides this vascular assessment for patients from Harley Street, Marylebone, Mayfair, Fitzrovia, Central London, St Albans, Hertfordshire and surrounding areas.
Choose one limb for a focused assessment, or two limbs when symptoms affect both legs or you need a side-to-side circulation comparison.
Includes arterial Doppler imaging of one leg, waveform assessment and ABPI pressure measurement.
Book an appointmentIncludes both legs for comparison of blood flow, pressure ratios and arterial waveform changes.
Book an appointmentAssessment of key leg arteries including femoral, popliteal, tibial and pedal artery flow where clinically appropriate.
Blood pressure comparison at the ankle and arm to quantify circulation and support PAD screening.
Real-time Doppler waveform assessment to help identify reduced flow, stenosis or obstruction patterns.
Your clinician explains the main findings after the scan and advises whether GP, vascular or urgent follow-up is required.
A clear report is usually provided within 24 hours and can be shared with your GP, consultant or insurer.
You can self-refer and book directly online. We also welcome GP and consultant referrals.
ABPI gives a useful pressure ratio, while Doppler ultrasound shows where and how blood is moving through the arteries. Combining both gives a stronger clinical picture than either test alone.
| Assessment | What it checks | Why it matters |
|---|---|---|
| ABPI | Compares ankle pressure with arm pressure. | Helps screen for reduced leg circulation and supports PAD risk assessment. |
| Arterial Doppler ultrasound | Assesses arteries, flow direction, waveform shape and areas of narrowing or obstruction. | Helps localise vascular disease and provides anatomical information for onward care. |
| Combined package | Uses both pressure measurement and real-time ultrasound imaging. | Provides a more complete assessment for leg pain, cold feet, cramping and vascular risk factors. |
If your circulation assessment is reassuring, your clinician will explain the result and advise when routine GP review or lifestyle risk-factor management may still be appropriate.
If the scan suggests arterial narrowing or PAD, your report can support GP, vascular clinic or specialist referral and guide further management.
If symptoms suggest sudden severe loss of blood supply, such as a cold painful pale foot, new severe pain or absent pulses, urgent medical assessment may be required rather than routine booking.
This scan is suitable when symptoms or risk factors suggest poor arterial circulation in the legs.
Cramping, tightness or pain that improves with rest can be a circulation warning sign.
Coldness, pale or blue colour changes, or reduced pulses may require vascular assessment.
Diabetes, smoking, high blood pressure, high cholesterol and family history increase PAD risk.
Leg or foot wounds that heal slowly may be linked to reduced arterial supply.
Useful when monitoring known arterial disease or comparing circulation between legs.
Provides objective findings that can support onward GP or vascular specialist referral.
Yes. Pain, tightness or cramping in the calf, thigh or buttock that comes on with walking and improves with rest can be a sign of reduced arterial blood flow and is a common reason to book this assessment.
ABPI is a useful pressure screen, but Doppler ultrasound provides more detail about the arteries and blood-flow pattern. The combined package is more suitable when symptoms, risk factors or previous results suggest a fuller vascular assessment is needed.
Yes. You can self-refer and book directly. Your written report can be shared with your GP, consultant, vascular specialist or insurer if follow-up is needed.
The service is available at London Private Ultrasound in Central London and St Albans, with booking buttons available for both clinic location cards below.
Click the button below to open our secure patient booking system. This page does not use an embedded calendar, so the booking journey is faster and cleaner for patients.
Your assessment is performed by experienced clinicians, with clear reporting and onward guidance when needed.

Ultrasound Consultant ยท Accredited Vascular Scientist ยท BMUS/SVT/RCT registered.

Experienced ultrasound consultant supporting vascular diagnostic pathways.

MD ยท MRCGP ยท DRCOG ยท GMC-registered GP providing clinical governance.

Nurse Prescriber supporting patient care standards and clinical governance.

Pharmacist Prescriber supporting medication and risk-factor review pathways.
Convenient for Harley Street, Marylebone, Mayfair, Fitzrovia and Central London patients.
Useful for patients from St Albans, Hatfield, Harpenden, Watford and Hertfordshire.