Read our latest advice on Coronavirus (COVID-19)

Our services are open and safe to attend – we are here to help

Your ultrasound appointment

Helping to diagnosis and treat vascular disorders


Appointments are held at both Guy's and St Thomas' Hospitals, so please check which hospital you are due at before coming to your appointment.

We may also perform scans in Gassiot House to coincide with your consultant's appointment.


Our inpatient services include scanning in our department, on the ward, in theatres, in intensive care units or in another specialty scanning area.

How do I get an appointment?

You can be referred to our department by your GP or another hospital doctor.

Our service operates from Monday to Friday, between 9am-5.30pm. Your appointment will be offered by telephone, text, email or appointment letter.

  • Changing or cancelling your appointment

    If for any reason you are unable to attend or need to change your appointment, let us know as soon as possible by calling 0207 188 6778.

    We would appreciate it if you could give us at least 48-hour notice so we can allocate your appointment to another patient. Failing to attend means we are not using our staff effectively and other patients are waiting longer.

    If you fail to attend your appointment without informing us, you may not be sent a further appointment and may be discharged back to your GP. 

  • Before your appointment

    If you have any dressings or bandages that might affect your scan, please contact us before coming to your appointment. You can eat and drink as normal before the scan. If any special preparation is needed, you will be advised before you attend the scan.

    Please check which hospital you are due to attend, before setting out. If you require any assistance finding the location, please see how our helping you plan your journey page or call 020 7188 6778.

  • During the ultrasound scan

    Your examiner will be a clinical vascular ultrasound scientist who has received specialist vascular ultrasound training.  Trainees may also participate in aspects of your scan.

    You may be asked to remove some of your clothing and to wear an examination gown. This allows us access to the blood vessels in your arms, abdomen or legs. Usually we ask you to lie down on an examination couch, although sometimes we may ask you to stand so that we can acquire better images of your blood vessels. A water-based gel is placed on the area of your body being scanned. The ultrasound probe is then passed over your skin with light pressure and images of your blood vessels are recorded. You may hear high frequency sounds when we monitor the blood moving in your vessels.

    Listen to the sound:



    The scan can take between 15 to 60 minutes, depending on how much information your doctor has requested.

    All our ultrasound tests are non-invasive, do not use needles or injections and there are no side effects. You may feel some discomfort due to the ultrasound probe pressure in some areas in your body.

  • After your appointment

    A number of images are recorded during your scan, these will be processed and a full report sent to your doctor. They will then review the results with you at your next outpatient appointment or on the ward if you are an inpatient.