Nuclear Medicine & Molecular Imaging Advisory Group (NMMAG)

The Nuclear Medicine and Molecular Imaging Advisory Group (NMMAG) supports and encourages education in Nuclear Medicine and promote educational progra

The field of nuclear medicine is developing and expanding with hybrid imaging now an increasing part of standard clinical practices for certain groups of patients.

Molecular imaging and gene based therapies will expand nuclear medicine yet further.

Nuclear medicine practice faces many challenges including workforce, education, regulation and security of supply of radioisotopes for imaging.

The Nuclear Medicine and Molecular Imaging Advisory Group (NMMAG) will support and encourage education in Nuclear Medicine and promote educational programmes in the field by:

  • Providing information and advice to support the Society And College Of Radiographers (SCoR) in strategy development
  • Promoting SCoR policies, strategies and publications within the context of nuclear medicine to the benefit of services, practitioners and patients
  • Promoting membership of the SoR by nuclear medicine practitioners enabling practitioners and services to benefit from SCoR’s established leadership in medical imaging, radiation therapy and oncology.
  • Delivering an annual work plan that supports the aims of the SoR about nuclear medicine and molecular imaging.

The spectrum of nuclear medicine practice encompasses imaging, hybrid techniques, therapy/treatment, and in-vitro studies.

Administrative support

Lead Professional Officer

      Vas Nevrides
      Council member

Meet the Nuclear Medicine & Molecular Imaging Advisory Group Members

  • Angela Meadows

    Angela-Meadows-Photo-2022.pngAngela currently works with Alliance Medical and is Head of PET CT Clinical Services. She has worked in the filed of PET CT for 20 years and imaging service management for over 13 years, managing PET CT and MRI/ CT imaging partnershipsin public and private sectors.

    Angela trained as a Diagnostic Radiographerin 1994‐1997 with the University of Leeds. Upon qualification, she returned closer to home to work at Blackpool Victoria Hospital as a Radiographer. In 2000 she commenced her MSc in Advanced Practice in Nuclear Medicine with the University of Salford.

    Whilst continuing towork inNuclearMedicine, Angela commenced an additional role as Clinical Tutor for the Undergraduate Radiography Programme for Lancaster St Martins (Now University of Cumbria) working with the university for approximately 3 years before leaving the NHS to take on a unique opportunity (at that time) to specialise in PET CT.

    Angela has authored various publications from reference text guides to journal articles and has undertaken conference presentations at local and national level Angela’s specific interests are in PET CT, research and paediatric NM imaging. She maintains a keen interest in current professional issuesthrough her involvement in the NMMAG Advisory Group

  • Christopher White

    Photo-Christopher-White-(1).jpgOriginally trained as a Diagnostic Radiographer, Christopher qualified from the University of Cumbria in 2013, taking up his first post in Scunthorpe shortly after graduating. In 2014 he moved to the Diana Princess of Wales Hospital, Grimsby to work in Nuclear Medicine, in that time completing his PgCert at the University of the West of England.

    Now working at the James Cook University Hospital in Middlesbrough, Chris is a full time Nuclear Medicine Radiographer, whilst also undertaking the role of Health and Safety Representative for the SoR.

  • Jo Weekes (Chair)

    Jo is a Consultant Radiographer in Nuclear Medicine at The Royal Wolverhampton NHS Trust (New Cross Hospital) and leads the Clinical Therapeutic Nuclear Medicine service. As a Consultant Radiographer, she is responsible for leading, managing and developing therapeutic nuclear medicine services

    Jo has been formally appointed to be included on the European Federation of Radiographer Societies’ (EFRS) Expert Network and joined the EFRS Nuclear Medicine Expert Committee. This means that as chair of the Nuclear Medicine and Molecular Imaging Advisory Group plus a committee member on both EFRS and BNMS, she is a representative on the three main groups of her profession.

    After qualifying as a radiographer, Jo worked in general radiography before specialising in Nuclear Medicine, undertaking the DRI at the Bradford School of Radiography, and later undertaking an MSc in Diagnostic Imaging at Oxford University (Wolfson College) with Dr Basil Shepstone.

    Jo also has experience in Nuclear Medicine, CT and MRI both in the human and veterinary field, having worked in acute and specialist hospitals, plus gaining 13 years’ experience in equine and veterinary hospitals.

    She has previous experience of University teaching at Oxford (MSc Diagnostic Imaging and FRCR Part 1) and has published various papers as well as contributing to various chapters in the textbook “Equine Scintigraphy”. Jo also has presented at National and International Conferences (BNMS and EANM).

    Key Interests: Service Development / Professional Development / Clinical Diagnostic and Therapeutic Nuclear Medicine / Research and Veterinary Nuclear Medicine

  • Rayjanah Allie (Vice Chair)


    Rayjanah Allie is a Nuclear Medicine Radiographer with experience spanning more than 20 years in private, NHS, paediatric and teaching hospitals.  She currently works as the Operational Superintendent at UCLH, where she oversees Nuclear Medicine, PETCT and PETMR.  She has participated in several publications and enjoys the mixture of clinical and managerial duties, with a keen interest in Cardiology, Paediatrics and Talent Management and Development.


  • Valerie Asemah (Administrator)


  • Tristan Barnden

    Tristan qualified as a Radiographer in 2004, working within the NHS in Radiology and Nuclear Medicine. He completed his Postgraduate training in Nuclear medicine in 2008 taking charge of his own department in 2010. He is currently Trust Lead Superintendent for Nuclear Medicine for the Maidstone and Tunbridge Wells NHS Trust.

    In 2015, Tristan completed his Cardiac Stress Leaders Postgraduate qualification, and in 2021 completed a Nuclear Medicine reporting qualification. Tristan is currently undertaking accreditation with the Academy of Advancing Practice to be fully recognised as an Advanced Clinical Practitioner in Nuclear Medicine, with his main specialism being in Nuclear Cardiology.

    Tristan maintains a strong interest in Nuclear Cardiology, and extended roles for Radiographers and other Non-Medical Practitioners in this field.

    Tristan also works as a sessional lecturer for London Southbank University and has several publications to his name. He enjoys helping to train and educate the next generation of Radiographers and promote Nuclear Medicine as key growth area for the future.

  • Dr Sai Han 

    MBBS, MSc, FRCP(Glasg)

    Dr Sai Han is a Consultant in Nuclear Medicine at the Glasgow Royal Infirmary and Clinical Lead at the West of Scotland PET/CT Centre. He is also an Honorary Clinical Senior Lecturer at Glasgow University.

    Dr Han trained in Nuclear Medicine and Hybrid imaging in the UK and USA. His main interestis in PET/CT and SPECT/CT imaging and he takes part in the North East Glasgow lung cancer MDT.

    Dr Han is a member in SIGN guidelines for lung cancer 2014, the British Nuclear Medicine Society Education Committee, and the UK Nuclear Medicine Specialist Training Committee. He also contributes to FRCR IIA GI module lectures and IIB tutorials in the West of Scotland Radiology Training Scheme.

  • Frances Hogg

    Frances Studied Physics and Applied Physics at Strathclyde University Glasgow and began working as a Nuclear Medicine and PET-CT Clinical Technologist in February 2009, where she completed the IPEM Clinical Technologist training scheme.  Frances have worked at several teaching hospitals in the West of Scotland.

    Since 2017 Frances have worked as the Chief Technologist at Glasgow Royal Infirmary Nuclear Medicine Department.

    She is currently an external moderator for IPEM Clinical Technologist training scheme and act as an Assessor for the RCT equivalence route.

  • Sue Johnson (Lead Officer)

    Professional officer for Clinical Imaging
    Lead Officer for NMMAG

  • Clare Moody

    Clare is a Superintendent Research Radiographer at Newcastle Hospitals NHS Trust. After gaining a BHSc (Hons) at Leeds University in 1999 she worked in general radiography at Hull Royal Infirmary before moving to the Newcastle Hospitals NHS Trust in 2000. Clare was promoted to Senior CT Radiographer in 2004 before moving into a Senior Research Radiographer role in 2011 and then in 2020 Clare became the superintendent for Radiology Research in Newcastle.

    She has enhanced her professional qualifications by completing a Post Graduate Certificate in Medical Imaging in 2003 at Sheffield Hallam University, a Radiopharmaceuticals course at Kings College London in 2011 and gained a distinction for a Postgraduate Diploma in Nuclear Medicine Imaging at Salford University in 2016.

    Clare has experience in general radiography, CT, MRI, and PET/CT. She also currently works in collaboration with Newcastle University in PET/MRI. Clare’s main responsibilities involve assessing capacity & capability for Radiology involvement in clinical trials. Evaluation, costings, implementation, and data management of research studies/clinical trials in areas such as oncology, haematology, orthopaedics, cardiology, and paediatrics.

  • Vas Nevrides

    UK Council member

  • Jessica Roberts

    Originally trained as a Diagnostic Radiographer at the University of Liverpool practising in Stoke on Trent, Jessica has worked in several modalities bringing her knowledge and experience together to work as a Hybrid Imaging Practitioner in Nuclear Medicine.

    In 2017 she embarked upon a Postgraduate Diploma in Nuclear Medicine and is about to undertake a Masters in Nuclear Medicine in 2021.

    She is passionate about raising awareness of Nuclear Medicine as an exciting profession and is involved in projects within her Trust on education, leadership, and quality improvement.

    As CT lead for Nuclear Medicine, she is currently leading several projects centred on Hybrid Imaging training and education. She hopes to publish and present posters at conferences in the near future.

    She is enthusiastic about turning ideas into real tangible changes that benefit both staff and patients by writing and implementing new decision-making pathways for patients, organising weekly CPD quizzes and promoting Nuclear Medicine at World Radiography Day events.

    She maintains an active and keen interest in a wide range of current professional issues through her involvement the Nuclear Medicine and Molecular Imaging Advisory Group.

  • Sarah Stace

    Sarah is the superintendent radiographer for Nuclear Medicine at Withybush Hospital, Pembrokeshire. The Department has a SPECT CT gamma camera that serves four district general hospitals covering a geographical area of the third of Wales. The centre provides extended working days to facilitate around 2,100 scans per annum.

    The Department offers bone, renal, lung, gastric, endocrine, brain, cardiac and paediatric Nuclear medicine imaging. There is a Radiographer-led reporting service for all non-cardiac examinations.

    Sarah trained at the Swansea School of Radiography and gained her MSc at City University, London. She studied for additional M level qualifications in clinical reporting and hybrid imaging and provides several reporting sessions per week.

  • Dr John Thompson

    PhD MSc BSc (Hons)

    John is a Senior Radiographer and Lecturer in Radiography with his role split between University Hospitals of Morecambe Bay NHS Foundation Trust and the University of Salford. In his clinical role, he works within a radiopharmacy and with a single SPECT/CT system. In his academic role, John is the module leader for Dissertation modules for MSc Advanced Medical Imaging and MSc Advanced Practice (Nuclear Medicine), where he has overseen a large number of varied MSc dissertation projects in a number of disciplines.

    He is also centrally involved in the delivery of MSc Advanced Practice (Nuclear Medicine). He has research responsibility in his academic role and takes part in the teaching and supervision of undergraduate, postgraduate, and PhD students. John has recently become a Fellow of The Higher Education Academy and teaches the basics of observer performance (ROC, JAFROC, VGA) to students on the MSc Health degree at the University of Lausanne and to those on the HST Programme at The Christie. John is also an External Examiner for Nuclear Medicine students at The University of Malta and for the BSc Diagnostic Radiography programme at Bradford University.

  • David Williams

    David started his Radiography career at the Royal Naval Hospital Haslar in Gosport and had the unique distinction of being the last radiographer to achieve the DCR(R) at the Royal Naval School of Radiography, before it became the Tri-Service school and moved to Woolwich.

    After a mixed career he was the lead for the Specials examinations at Haslar when he was offered the opportunity to work with the Army at Queen Elizabeth Military Hospital in Woolwich, during which time he completed the DRNI at Guy’s Hospital.

    Returning to the Royal Naval Hospital Haslar he commenced his Masters Degree in Nuclear Medicine at Portsmouth University.  During this period, he was mainly involved in the Specials and Angiography at Haslar, with short spells in Nuclear Medicine, before taking redundancy under the “Options for Change” programme. He completed his MSc as a civilian.

    At this point exploring his options, he took a one month locum contract with Portsmouth Hospitals NHS Trust to work in Nuclear Medicine and is still there some 21 years later.

    He studied for his Professional Doctorate at Portsmouth University, and was awarded a PGD in Advanced Medical Research when he had to leave the course due to personal issues.
    He has the privilege of being the Superintendent Radiographer for Nuclear Medicine  at Portsmouth hospitals, a post he has held since 2010.

    He also now holds the distinction of being the only Nuclear Medicine professional trained by the UK Armed Forces and still practicing.

    He has previously been a member of  the Molecular Imaging specialist group of the British Institute of Radiology.
    His present interests are across the whole of Nuclear Medicine, but he has a special interest  in the changes occurring in Nuclear medicine and how these can be addressed to ensure a secure future for the profession.

  • Dr David Wyn Jones 


    David currently leads the Nuclear Medicine service in North Wales for the Betsi Cadwaladr University Health Board. As Principal Radiographer, he is responsible for leading and developing nuclear medicine services for the region, and has responsibility for services at three acute sites, as well as the provision of PET/CT imaging for the region, and supporting national development work within Wales.


    After qualifying as a radiographer at the Shropshire School of Radiography in 1989, David worked in general radiography before specialising in Nuclear Medicine, undertaking the DRI at the Birmingham School of Radiography (led by Ken Holmes and Dr Keith Harding) in 1992, and later undertaking an MSc in Nuclear Medicine at Salford University with Professor Peter Hogg.

    David has experience of CT and MRI also, having worked in acute and specialist hospitals, and some previous experience of University teaching, as part time lecturer at City University, London, and as a visiting lecturer and examiner for Bangor University. Former honorary posts also include Honorary Research Fellow, and Honorary Lecturer at Salford.

    David is a former ARSAC committee member, having served for over 8 years, giving a radiographic perspective to the work of the committee, advising Government.

    As well as contributing to the Nuclear Medicine chapters in both editions of the textbook ‘Carver & Carver - Medical Imaging’, David has published a textbook entitled ‘Practical SPECT/CT’, with Springer, bringing together international experts for the benefit of nuclear medicine practice.

    David has a Professional Doctorate in Healthcare from Bangor University – specialising in ‘Implementation Science’ – gaining expertise and knowledge by researching into ‘why evidence does not always find its way into clinical practice’, and in particular investigating Implementation within the radiography profession.

    As well as the above, some time is also found to assist the CQC as a specialist adviser for Radiology / Nuclear medicine, undertaking inspection work and advising as appropriate.

    David has previously served as Chair of NMMAG at the SCoR for 4 years and continues to be an active advisory group member.

    Key Interests: Service Development / Professional Development / Radiation Protection / Regulation / Clinical Nuclear Medicine and Research.