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Non-invasive testing information for patients


Coronavirus: non-invasive cardiology testing service update

We no longer offer a walk-in ECG service and booked ECG appointments are only available at St Thomas' Hospital.


Patients will need to have a booked appointment. Once your GP has requested an appointment, please call the cardiology department on 020 7188 0973 to book your appointment at St Thomas' Hospital. During the phone call, you will be pre-screened for symptoms of coronavirus (COVID-19) and your risk will be assessed for attending a hospital appointment. Appointments will normally be available within one to two working days.


The GP open access ECG service is now by appointment only, please do not send patients directly to cardiology. This will allow the cardiology department to monitor patient numbers and to support government guidance on social distancing. Please note we are not accepting any ECG appointments at Guy's Hospital.

Please request an ECG, by completing a new form which has been sent to all GP services.


There are booked lists for tests, every day, at both Guy's and St Thomas'. Specialist stress and transoesophageal echocardiograms and cardiorespiratory exercise tests are conducted at St Thomas' Hospital.

Duty consultant

  • Monday - Dr Gerry Carr-White
  • Tuesday - Dr Jane Hancock
  • Wednesday - Professor John Chambers
  • Thursday - Dr Ronak Rajani and Dr Jane Hancock
  • Friday - Dr Stam Kapetanakis


We no longer offer a walk-in ECG service. Patients will need to have a booked appointment and these are only available at St Thomas' Hospital.

Cardiac computed tomography (CT) service

Clinical service leads: Dr Ronak Rajani (cardiology) and Dr Rebecca Preston (radiology)

We have four dedicated cardiac CT lists per week:

  • Guy's: Monday and Friday mornings
  • St Thomas': Monday afternoons and Thursday mornings.