Dr Visvalingam Gnanananthan

Consultant Radiologist

MBBS, MD (Radiology), MSc (Nuclear Medicine)

"Spire St Anthony's is a well equipped hospital with a very good working environment and friendly staff."

Specialises in

I have been in the field of Radiology since 1994. I have had extensive training in all modalities in Radiology at the National Hospital of Sri Lanka (a 3,000 bed tertiary centre) and at Guy's & St Thomas NHS Trust. I have been working as a Consultant in Radiology since 2001. I have worked in Teaching and District General Hospitals in Sri Lanka and the National Hospital of Sri Lanka as a Consultant till 2006. I have been working in the NHS since 2006 at consultant level and have worked in various trusts, including tertiary referral centres.

I have wide experience in CT scanning, plain radiography (X-ray) reporting and ultrasound. My special interest is Nuclear Medicine planar and Hybrid SPECT/CT imaging.

I report around 2,500 CT scans each year and similar number of Nuclear Imaging. From 2008-2014, I did more than 2,000 ultrasounds per year and more than 14,000 plain x-ray reporting.

I am ARSAC License holder for Nuclear Imaging at my NHS Trust and Lead Radiologist for Haematology MDT.


Treatment information

Some of the principal treatments carried out by Dr Visvalingam Gnanananthan at Spire include:

Other treatments

  • CT imaging
  • Hybrid SPECT
  • Nuclear imaging


Get in touch

Important information about Covid-19 tests

Spire St Anthony's Hospital is only able to provide Covid-19 tests to patients undergoing surgery at our hospital. Covid-19 testing or antibody tests are not available as a standalone service.


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Additional information

Clinical interests

Chest radiology
CT scanning
Gastrointestinal radiology
Nuclear medicine
Urological radiology

Qualification and professional memberships

MBBS / University of Jaffna, Sri Lanka / 1987
Bachelor of Medicine, Bachelor of Surgery

MD Radiology / University of Colombo, Sri Lanka / 1999
Doctor of Medicine in Radiology

MSc (Nuclear Medicine Science and Practice) / Kings College, London / 2017
Master of Science

Professional memberships

Royal College of Radiologists

British Institute of Radiology

British Medical Ultrasound Society

British Medical Association

American Roentgen Ray Society

Sri Lanka College of Radiologists

Radiological Society of North America

British Society of Cardiac Imaging

British Nuclear Medicine Society

European Association of Nuclear Medicine

Society of Nuclear Medicine and Molecular Imaging

Professional leadership

ARSAC License holder and Designated Nuclear Medicine Practitioner St Helier Hospital, Epsom & St Helier NHS Trust

Personal profile

I am married and live with my wife and two daughters (who are currently at university). My hobbies are reading, especially current affairs and also watching movies.