Core Lab Team

The Clinical Trials Network and Core Lab are jointly administered by Professors Paul Marsden and Sally Barrington. Both have extensive experience in all aspects of PET and in particular the running of multicentre PET trials and were involved in the establishment of the original trials network at St Thomas'.

Day-to-day management of the Core Lab is overseen by Lucy Pike. Technical and clinical support is provided by a team of physicists and clinicians with expertise in conducting clinical trials from the King' College London & Guys and St Thomas' PET Centre.

UK PET Core Lab Co-leads

Professor Sally Barrington

Professor Sally Barrington

Professor of PET Imaging and NIHR Research Professor

Sally Barrington is Professor of PET Imaging and NIHR Research Professor in the School of Biomedical Engineering & Imaging Sciences at King's College London, St Thomas' Hospital. Her research interests include PET and lymphoma, standardisation of PET and organisation of multicentre trials and PET in Radiotherapy planning.

Research Profile


Professor Paul Marsden

Professor Paul Marsden

Professor of PET Physics

Paul Marsden is Professor of PET Physics in the School of Biomedical Engineering & Imaging Sciences at King's College London. He is also Director for PET Physics at the King' College London & Guys and St Thomas' PET Centre. Paul Marsden has been involved in PET imaging for most of his career and has worked in most aspects of the field. His research interests cover PET methodology and applications.

Research Profile


Physics Team

Lucy Pike

Lucy Pike

Senior Clinical Scientist

Lucy has a particular interest in standardisation for multicentre clinical trials and has been involved in developing a number of national and international guidelines for quality control of PET and use of PET in radiotherapy planning. She manages the running of the Core Lab and development of new standards for trials.

Research Profile


Alyss Harman

Alyss Harman

Medical Physics Technologist

Alyss performs analyses the data submitted for site accreditation and has developed automated processes for quality control of PET scans.


Sorcha Curry

Sorcha Curry

Clinical Scientist

Sorcha is involved in a number of multicentre trials utilising PET for radiotherapy planning and has been involved in implementing automated delineation software. She oversees QC on the PET-CT scanners and acts as RPS for the clinical scanning area


Dr Georgios Krokos

Dr Georgios Krokos

Clinical Scientist

Georgios has experience in pharmacokinetic analysis for measuring cerebral perufusion and permeability using dynamic PET and MR images. He also has an interest in PET image reconstruction techniques and he has been involved in standardisation of PET-MR scanners participating in multicentre trials for the Dementias Platform UK.


Clinical Support

Dr Malene Fischer

Dr Malene Fischer

Senior Clinical Lecturer, and Honorary Consultant in Nuclear Medicine

Dr. Fischer has been doing research in the field of PET/CT and oncology since 2001. The common thread of her research is the exploration and implementation of functional imaging in diagnosing and treatment of patients with cancer including image guided radiotherapy planning.

Research Profile


Dr Victoria Warbey

Dr Victoria Warbey

Consultant Radiologist and Nuclear Medicine Physician

Research interests include functional imaging of Lymphoma and the use of PET in Neurofibromatosis.

Research Profile