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NM advisory group

NMAG consists of a panel of carefully chosen experts who advise the organisation on the development of suitable policies and strategies to support nuclear medicine practice. In addition NMAG undertakes a range of projects to facilitate the implementation of such policies.

NMAG is currently working on a number of projects, including a joint project with the Institute of Physics and Engineering in Medicine (IPEM) to identify standards for education, practice and development of nuclear medicine practitioners, guidance around the provision of nuclear medicine hybrid imaging services and a major review of the Society's nuclear medicine policy and strategies.

Sue Johnson is the SCoR Officer responsible for this group.


NMAG Members

David Wyn Jones (Chair)
Simon King (Vice Chair)
Dr Penny Delf
Marguerite Du Preez Meintjes
Sally Farrell
Mark McDade
Jim Reid
David Williams
Angela Meadows
Sai Han
Dr John Thompson
Rachel Harris (Professional Officer)
Sue Johnson (Professional Officer)
Jenny Jones (Council Member)




David Wyn Jones MSc DCR(R) DRI CRadP MSRP (Chair)

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 population.

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. He currently holds an Honorary lecturer position, as an associate of the University of Salford..

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.

David contributes at a national level – as a member of the statutory ARSAC committee (DOH) – where he is able to offer advice and guidance from a radiographic perspective.

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

David is currently completing a Professional Doctorate at Bangor University – specialising in ‘Implementation Science’ – gaining expertise and knowledge by researching into ‘why evidence does not always find its way into clinical practice’.

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

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


Marguerite du Preez Meintjes

Marguerite qualified with a Baccalareus in Radiography in 2000 at the University of Pretoria in South Africa and went on to complete her B.Tech in Nuclear Medicine in 2002. She worked in all areas of radiography in several hospitals in Gauteng, South Africa, before joining the clinical team at the Institute of Nuclear Medicine at University College London Hospital. She is involved in all aspects of the clinical and research PET/CT imaging and also the training of other radiographers. 

Marguerite is persuing her Masters in Radiography with specialisation in Nuclear Medicine at the University of Pretoria in South Africa, investigating the added value of Quantitative Myocardial blood flow analysis with Rubidium82 PET and Coronary CT angiography in intermediate likelihood of CAD.

BNMS Clinical practitioner award – Harrogate 2012 for presentation on 18F-DOPA PET/CT and enhanced CT scanning protocol for congenital hyperinsulinism: Initial UK experience
Marguerite Meintjes, Raymond Endozo, John Dickson, Kjel Erlandsson, Khalid Hussain, Caroline Townsend, Leon Menezes and Jamshed Bomanji. 18F-DOPA PET and enhanced CT imaging for congenital hyperinsulinism: initial UK experience from a technologist’s perspective. (Accepted by Nuclear Medicine Communication for publishing)


Sally Farrell

I currently work as a Consultant Clinical Technologist in Nuclear Medicine at Derriford Hospital in Plymouth, a post I have held for five years.

Initially, I trained as a radiographer at the United Birmingham Hospitals, qualifying in 1972 and working there for a further two years. In 1974 I took up a post in the Channel Islands where I stayed for four years. Following this, I returned to the UK and a post in Nuclear Medicine at the Royal Marsden Hospital, Sutton working with Professor Ralph McCready.

After a career break and some locum work, I returned to full time employment in the Nuclear Medicine department of the Royal Devon and Exeter Hospital as a Senior II in 1991 and, with career progression, became Superintendent in 1999. During this time I was instrumental in setting up the blood labelling service and the sentinel node service for both melanoma and breast.

In 2008 I moved to my current post here in Plymouth where, as part of my role, I undertake non-medical reporting. I lecture in Nuclear Medicine for the undergraduate Radiography programme at the University of Exeter and have presented on various subjects at both local and national level. My current interests are non-medical reporting, sentinel node imaging and radionuclide therapy.

I am currently a member of the British Nuclear Medicine Society Council and co-chair of the BNMS Clinical Practitioners Group.

Diploma of the Society of Radiographers  1972
Postgraduate Diploma in Nuclear Medicine  1997
Diploma in Management Studies   2000
MSc Nuclear Medicine    2001
Non Medical Reporting    2003
Postgraduate Diploma in Advanced Practice   2005


Dr Penny Delf D.MedImg MSc PgC(RNI) BSc(Hons) DCR(R) FHEA

Penny works as a Senior Lecturer and is the Research and Publications Lead in Radiography at the University of Portsmouth.

She is a Fellow of the Higher Education Academy, an external examiner for Birmingham City University and a committee member for the British Nuclear Medicine Society Clinical Practitioners group.

After qualifying as a Radiographer in 1984 from the Westminster Hospital, London, Penny gained general and specialist experience between the Westminster and Westminster Children’s Hospital, before moving to the Wessex Paediatric Centre at Southampton in 1987.  From there, she had the opportunity to work in the Wessex Neurological Unit, before joining the main diagnostic imaging department where she consolidated her trauma experience.

In 1992, she joined the academic team at Portsmouth, completing an MSc in Education and Training Management (1996), followed by postgraduate studies at City University, London in radionuclide imaging in 1998. Subsequently, she successfully led the MSc in Radionuclide Imaging pathway at Portsmouth until 2006, and, to-date, maintains close ties with the Nuclear Medicine department at University Hospital Southampton.

Over the years, she has authored a number of peer reviewed publications and undertaken conference presentations at local and national level. She also currently reviews for two professional journals.

In 2012, Penny was awarded a Doctorate in Medical Imaging following a programme of research into 'The design, implementation and effectiveness of a sole eLearning module to prepare non-medical healthcare practitioners to report radionuclide bone scans'.  This work has informed her current research, which includes the promotion of ongoing professional education to meet workforce needs, through the development of sustainable, interactive and adaptive eLearning technologies.


Dr Sai Han MBBS, MSc, FRCP(Glasg)Dr Sai Han

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.





Mark McDade MSc RSci IPEM

Mark currently works as an Advanced Specialist Clinical Technologist in Scotland for Greater Glasgow and Clyde Health Board. He is jointly responsible for delivering and developing Nuclear Cardiology services across the west coast.

Mark has a broad background, having worked in Radiotherapy, Cardiothoracic Theaters, Bio-Engineering and general Nuclear Medicine, before specialising in Nuclear Cardiology. As a registered Clinical Physiologist he has an interest in ECG and instructs health care professionals in 12 lead reporting. He is trained in Advanced Life Support and is an Immediate Life Support instructor.

Marks role as member of Nuclear Medicine Advisory Group for the Institute of Physics and Engineering in Medicine allows him to contribute at a national level. Enabling him to offer advice and promote perspectives from Clinical Technologists.

Key Interests: Professional Development / Service Development / Cardiac Imaging / Teaching and Training.


Dr John Thompson

I am a Senior Radiographer with over 10 years experience, currently working in a Nuclear Medicine department in a small district general hospital. I am currently on a 2-day secondment at the University of Salford where I have been heavily involved with research. I have recently completed a PhD, where much of the focus was into the value of the low-resolution CT images acquired for attenuation correction in myocardial perfusion imaging. My main area of expertise is observer performance , where I have developed skills in free-response receiver operating characteristic (FROC) analysis.






Simon King

Simon is a Programme Leader and Senior Lecturer within the Faculty of Health and Applied Sciences at the University of the rest of England, Bristol. Alongside various teaching and facilitation responsibilities on the undergraduate Diagnostic Imaging (Radiography) programme, Simon is currently responsible for the management and provision of an MSc programme in Nuclear Medicine which is delivered as a ‘distance learning’ package to UK and international students.

Recent work has concentrated on the development and delivery of Continuous Professional Development (CPD) and post graduate education, utilising a variety of teaching models and innovative Technology Enhanced Learning (TEL) solutions.

He is a Fellow of The Higher Education Academy in recognition of attainment against the UK Professional Standards Framework for teaching and learning support in higher education, and also works alongside the MSc Medical Imaging programme team at Trinity College, Dublin, as their External Examiner. Simon has recently embarked on a PhD award at the University of the West of England and key interests include Patient Care, Hybrid Imaging and Technology Enhanced Learning

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