Royal Free London Nuclear Medicine Academy

GFR Masterclass Speakers



Danny McCool

Danny McCool is the Professional Lead for Nuclear Medicine at the Royal Free London NHS Foundation Trust. He is a board member of the KCL MSc in Nuclear Medicine and a member of the ARSAC committee.  His interests include  optimised patient dose strategy and radionuclide dose recording.


Malavika Nathan

Malavika Nathan is a Consultant Radiologist and Nuclear Medicine Physician at Royal Free London NHS Foundation Trust.  Her practice encompasses a variety of SPECT-CT and PET-CT imaging, but she has a particular interest in musculoskeletal SPECT-CT. She has co-authored book chapters on bone scintigraphy and is often invited to speak on musculoskeletal SPECT-CT at regional,


Fred Wickham

Fred Wickham has worked as a physicist in the Nuclear Medicine Department at the Royal Free Hospital since 2008. He has published several papers on the measurement of GFR, including two on the calculation of GFR in patients with ascites, and was a contributor to the new BNMS guidline. Other interests include dosimetry for molecular radiotherapy and optimisation of nuclear medicine administrations. 


Maria Vilarino-Varela

Maria Vilarino-Varela is a Consultant Clinical Oncologist at theRoyal Free London NHS Foundation Trust


Emmanuel Tsochatzis

Dr Emmanuel Tsochatzis (MD, MSc, FEBTM, FRCP, PhD) is a Senior Clinical Lecturer and Consultant Hepatologist at the UCL Institute for Liver and Digestive Health, Royal Free Hospital in London. His main research interests include non-alcoholic fatty liver disease, cirrhosis and portal hypertension and non-invasive assessment of liver fibrosis. He is the recipient of the Rising Star in Gastroenterology prize by the UEG and the EASL Physician Scientist Fellowship. His work on the cost-effectiveness of non-invasive fibrosis tests has informed the World Health Organization (WHO) guidelines on diagnosis and treatment of both HBV and HCV. He has published more than 170 articles in peer-reviewed journals.


Philip Masson

Philip Masson is a Consultant Nephrologist at the Royal Free London NHS Foundation Trust.


Maria Burniston

Maria has worked as a Clinical Scientist for over 35 years, mostly as a Nuclear Medicine Physicist. She first developed her passion for GFRs at Leeds, where she was awarded a PhD for her research in the practical and clinical challenges of carrying out these tests in oncology patients. On moving to the Royal Free Hospital on 2009 she was very excited to find a like-minded group of colleagues who shared her passion, and together they published widely in the area, culminating in writing the update of the recently published BNMS guidelines. In 2017 she moved to take up a post as Head of Nuclear Medicine Physics at Barts Health and is currently also interim Head of Nuclear Medicine. She finds these roles provide challenges and rewards, but never the excitement of GFRs.


Laura Perry

Laura is a Senior Nuclear Medicine Physicist in the Radiological Sciences Unit at Imperial College Healthcare NHS Trust. She is appointed as a Medical Physics Expert (MPE), Health Research Authority MPE Reviewer and lecturer on the Imperial College London MSc in Biomedical Engineering with Medical Physics. After graduating in physics from Oxford and going on to teach physics and maths in Sri Lanka for 2 years, Laura underwent training as a medical physicist in London and has since spent 8 years at Imperial developing specialist research and clinical interests in quantitative nuclear medicine, SPECTCT and PET/CT.


Ivy Vito

Ivy has worked as Deputy Chief NM Technologist at the Nuclear Medicine Department, Royal Free London since 2006. She has a wide experience in a variety of investigational procedures and radionuclide therapies.  She led the Technologist participation in radionuclide therapies at RFL. Other interests include DXA management & Reporting, Cardiac imaging and Quality Management System.She worked in the Phil Heart Centre from 1995 as NM Technologist before coming to QE Hospital London in 2003.


Pauline Josephs

Pauline Josephs is the lead technologist for GFR measurement in the nuclear medicine department at the Royal Free London NHS Foundation Trust.


Helena McMeekin

Helena is a state-registered clinical scientist specialising in nuclear medicine physics. She enjoyed working in the Royal Free Hospital and the National Amyloidosis Centre, developing her skills in all areas of nuclear medicine and PET/CT physics and publishing research focusing on GFRs and patient specific activity optimisation for FDG PET/CT. She is the lead author on publications supporting the move from multiple sample to single sample GFR in the 2018 BNMS GFR guidelines, of which she is also an author.

Helena currently works part time for Barts Health NHS Trust as a Nuclear Medicine Physicist and for Hermes Medical Solutions as a Clinical Applications Scientist. For Hermes she informs the development of oncology and dosimetry software applications and provides customer applications training and support; her passion for clinical research continues at St Bartholomew’s Hospital.