Private Ultrasound Scan · Ultrasound types
A private Doppler ultrasound scan uses sound waves to show blood flowing through the arteries and veins, with no radiation and no injection. It shows whether blood is flowing normally, whether a vessel is narrowed or blocked, and whether the valves in the leg veins are working. Common Doppler scans look at the leg veins, the leg arteries and the carotid arteries in the neck.
Indications
Book online
Appointments at independent centres
No GP referral is needed: you can self-refer and book directly. Written report from a consultant radiologist.
About this scan
Ultrasound imaging uses high-frequency sound waves to create real-time images of the body's internal structures. Unlike MRI and CT, there is no ionising radiation, making it the preferred choice for assessing abdominal organs, pelvic structures, vascular blood flow, and soft tissue masses.
A sonographer applies a small amount of gel to the skin and moves a transducer (probe) over the area. The sound waves bounce back from internal structures to create live images on screen. Most ultrasound scans are painless and take 20–40 minutes. Results are often available immediately, with a written radiologist report typically within 24 hours.
Key facts
The process
The sonographer confirms you've followed any required preparation (fasting, full bladder) and explains the procedure.
A warm gel is applied to the skin. The sonographer gently moves the probe over the area, taking measurements and recording images.
The sonographer may share initial findings with you during the scan. The scan typically takes 20–40 minutes.
A consultant radiologist reviews the images and your written report is delivered to your ScanBook portal within 24 hours.
Before your scan
For abdominal scans: fast (no food or drink except water) for 4–6 hours before your appointment.
For pelvic scans: arrive with a full bladder; drink 1 litre of water 1 hour before and don't urinate.
For thyroid, breast, MSK and vascular scans: no preparation is needed.
Wear loose, comfortable clothing to allow easy access to the area being scanned.
FAQs
I think I have a blood clot in my leg. Should I book a Doppler scan?
No. A suspected deep vein thrombosis (DVT), such as a swollen, painful, warm calf, needs same-day medical assessment. Contact NHS 111 or your GP urgently. If you are also short of breath or have chest pain, call 999, as a clot may have travelled to the lungs.
What does a varicose vein scan show?
A venous Doppler scan shows which veins are leaking (reflux) and where, which is what a vascular specialist needs to plan treatment. It is usually done standing or sitting, so the veins fill with blood.
Do I need a GP referral for a Doppler scan?
No. You can self-refer for this scan and book directly through ScanBook, without seeing a GP first.
How long does a Doppler scan take?
Usually 20–45 minutes, depending on how many vessels are scanned. Wear loose clothing that lets the sonographer reach the area. No preparation is needed for most leg and neck scans.
Is ultrasound safe?
Yes. Ultrasound uses sound waves, not radiation, and is completely safe for all patients, including pregnant women and children.
Will I need a full bladder?
Only for pelvic and lower abdominal scans. A full bladder creates an acoustic window for better imaging. For abdominal, thyroid, breast and MSK scans, no bladder preparation is needed.
Can ultrasound detect cancer?
Ultrasound can identify suspicious masses, cysts and structural abnormalities that may require further investigation. It's commonly used to characterise lesions found on physical examination or other imaging.
independent imaging centres. Radiologist report delivered to your secure portal.
