Professor William Evans

MBE MA(Oxon) PhD(Wales) FInstP FIPEM FSRP HonMRCR CPhys CSci CRadP

Honorary Professor

: evanswd1@cardiff.ac.uk
: +44 (0)77 0217 4012
: Medical Physics - Room GTB2/35, Main Hospital Building, University Hospital of Wales, Heath Park, Cardiff, CF14 4XN

: Welsh speaking
: Available for postgraduate supervision

I am a medical physicist and registered clinical scientist; I worked in the National Health Service for over 40 years. In 2017, I retired as Head of Medical Physics and Clinical Engineering in the Cardiff and Vale University Health Board, based at the University Hospital of Wales. The responsibilities of the post included the provision of a wide range of clinical, scientific and technical services but my own areas of expertise were nuclear medicine, bone densitometry, body composition measurement and radiation safety. In 2021, I returned to work for the Health Board as a Consultant Clinical Scientist ito support the bone densitometry and osteoporosis services.

Throughout my career, I have had a strong interest in teaching, training and research. I am an Honorary Professor in the School of Engineering and I have co-supervised several PhD students whose projects have involved various aspects of medical radiation physics and engineering. In addition, I have acted as reviewer and internal examiner for Cardiff University research degrees.

Education

1981-1983 University College Cardiff: Postgraduate Diploma (Computer Studies)

1972-1976 University of Wales (University College Cardiff): PhD (Atomic Physics)

1969-1972 University of Oxford (Jesus College): BA (Physics), MA (1976)

1962-1969 Whitland Grammar School, Carmarthenshire: O level and A/S level Certificates

1956-1962 Pantycaws County Primary School, Carmarthenshire: Eleven Plus Certificate

NHS Appointments

2021-Present Consultant Clinical Scientist, Cardiff and Vale University Health Board

2017-2021 Honorary Consultant Clinical Scientist, Cardiff and Vale University Health Board

2010-2017 Head of Medical Physics and Clinical Engineering, Cardiff and Vale University Health Board

2003-2010 Consultant Clinical Scientist and Head of Medical Physics, Cardiff and Vale University Health Board

1995-2003 Consultant Medical Physicist, Cardiff and Vale NHS Trust

1984-1995 Principal Medical Physicist, University Hospital of Wales Healthcare NHS Trust

1979-1984 Senior Medical Physicist, South Glamorgan Health Authority

1976-1979 Basic Grade Medical Physicist, South Glamorgan Health Authority

Honours and awards

2014 Member of the Order of the British Empire (MBE) for services to the NHS in Wales and overseas

2009 Honorary Member, Royal College of Radiologists (HonMRCR)

2005 Honorary Certificate of Competence, Bone Densitometry Practitioner, National Osteoporosis Society

1983 Medical Fellowship, Council of Europe

1972 Marion Bradley Physics Prize, Jesus College, Oxford

1967 Carmarthenshire Schools Representative, London Youth Science Fortnight

Professional memberships

2022 Associate of the National School of Healthcare Science (ANSHCS)

2013 Fellow, Society for Radiological Protection (FSRP)

2008 Chartered Radiation Protection Professional, Radiation Protection Council (CRadP)

2004 Chartered Scientist, Science Council (CSci)

2002 Registered Clinical Scientist, Health and Care Professions Council

1994 Fellow, Institute of Physics (FInstP)

1991 Cert. of Competence, Radiation Protection Adviser, Institution of Physics & Engineering in Med. & Biol.

1990 Fellow, Institute of Physics and Engineering in Medicine (FIPEM)

1985 Chartered Physicist, Institute of Physics (CPhys)

Academic positions

2014 External Examiner (PhD), University of Nottingham

2011-Present Honorary Professor, School of Engineering, Cardiff University

2010 External Examiner (MD), University of Colombo, Sri Lanka

2009-2013 Visiting Lecturer (BSc), University of Swansea

2008-Present International Adviser, SRM University, Chennai (Madras), India

2008-2009 Ext. Examiner (MRad/MMed), Univ. of Malaya, National Univ. of Malaysia and Science Univ. of Malaysia

2001-Present Internal Examiner (PhD), Schools of Engineering and Medicine, Cardiff University

1996 External Examiner (PhD), University of Swansea

1996 External Examiner (MPhil), University of Glamorgan

1990-2016 Honorary Lecturer and Internal Examiner (BSc), School of Physics and Astronomy, Cardiff University

1989 External Examiner (PhD), University of Leeds

Speaking engagements

International

2008 Overview of methods for bone densitometry: SRM University National Workshop on Bone Densitometry, Kattankulathur, India and Jerusalem College of Engineering, Chennai (Madras), India

2008 Interpretation and role of bone densitometry and Principles of dual energy x-ray absorptiometry (DXA): SRM University National Workshop on Bone Densitometry, Kattankulathur, India, 2008

2008 Nuclear medicine in sentinel node localisation and The measurement of bone mineral density: Updates in Ionizing Radiation, University of Malaya, Kuala Lumpur, Malaysia

2006 Principles of operation of DXA systems and Scientific and technical principles of DXA: DXA Radiation Protection Seminar, European Commission SENTINEL (Safety and Efficacy for New Techniques and Imaging using New Equipment to support European Legislation) Project, Dublin, Ireland, 2006

2005 Sentinel node biopsy and the role of nuclear medicine: Annual Conference of the Association of Medical Physicists of India, Chennai (Madras), India and Pondicherry Institute of Medical Sciences, Pondicherry, India

2004 Advances in magnetic resonance imaging and Science and Technology of positron emission tomography: Joint scientific meeting of the Lebanese Society of Radiology and the Pan Arab Neuroradiology Society – Technical Satellite Symposium, Beirut, Lebanon

1994 Bone density measurement K J Hospital, Madras, India

1994 Methods of measuring bone density Tenth Annual Conference of the Indian Rheumatism Association, Madras, India

1983 Photon absorptiometry for elemental analysis in vivo University of Gothenburg Radiation Physics Department, Sahlgren Hospital, Gothenburg, Sweden

National/Local

2017 Reflections on a life in medical physics All Wales Medical Physics and Clinical Engineering Summer meeting, Swansea

2007 Advances in medical physics Physics Update – A course for practising science teachers. Institute of Physics, Cardiff

2006 The role of nuclear medicine in sentinel node biopsy for breast cancer Image Matters – Raising the Image 2006. Royal College of Nursing Imaging Nurses Forum Conference, Cardiff

2006 The role of imaging in the diagnosis of osteoporosis Royal Society of Medicine Conference: Key Advances in the Clinical Management of Osteoporosis, Cardiff

2005 Pre-operative nuclear medicine in sentinel lymph node biopsy Annual Meeting of the Association of Surgeons of Great Britain and Ireland, NEW START Sentinel Lymph Node Biopsy Training Day, Glasgow

2000 Radiation physics and protection for the surgeon First ALMANAC (Axillary Lymphatic Mapping Against Nodal Axillary Clearance) Symposium, Cardiff

2002 Datblygiadau mewn delweddu meddygol (Developments in medical imaging, in Welsh) Cymdeithas Wyddonol Cylch Caerdydd (Cardiff and District Scientific Society)

1999 Dilemmas in paediatric bone densitometry Wales, South West and Wessex Osteoporosis Group, 15th Biannual Meeting, Chepstow

1997 Routine radiometry and equipment servicing - what you should be doing Psoralen and Ultra Violet A (PUVA)/Phototherapy Study Day for Dermatologists, Cardiff

1997 How do we measure your bone density? Women’s Health Day - Osteoporosis, the Menopause and HRT. Standing Conference of Women’s Organisations, Cardiff

1996 Osteoporosis and bone mineral measurement Breast Test Wales, Cardiff and Breast Test Wales, Swansea

1992 Methods of measuring bone density The Menopause: Management and Recent Developments - A study day for health professionals, University College of Swansea

1990 Quantitative CT and other methods of bone mineral measurement Innovative Imaging. Association of Medical Technologists Annual Exhibition and Conference, Cardiff

1990 Ymbelydredd – ffrind neu elyn? (Radiation - friend or foe? in Welsh) Eisteddfod Genedlaethol Cymru – Adran Wyddonol (National Eisteddfod of Wales - Scientific Section), Rhymney Valley

1980s A little radioactivity does you good! The application of radionuclides in medicine (1) Cardiff Scientific Society, 1990 (2) Techniquest, Cardiff, 1989 (3) Annual Meeting of the Association for Science Education, Cardiff, 1987 (4) Physical Society, University College of Wales, Aberystwyth, 1988 (5) South Wales Region, Association for Science Education, Cardiff, 1983 (6) Department of Physics, University College, Cardiff, 1981

1986 Measurement of bone mineral content by single photon absorptiometry Meeting of South Wales Bone Research Group, Cardiff

1985 Tonnau ar waith mewn meddygaeth (Waves at work in medicine, in Welsh with GM Owen) Arddangosfa Gwyddoniaeth a Thechnoleg, Eisteddford Genedlaethol Urdd Gobaith Cymru (Science and Technology Exhibition, National Youth Eisteddfod of Wales), Cardiff

1982 Computers in the x-ray department Meeting of the All-Wales Superintendent and Tutor Radiographers Committee, Aberystwyth

Committees and reviewing

Reviewing

Grant application reviewer for 5 scientific organisations:

National Osteoporosis Society
Nuffield Foundation
Royal Academy of Engineering (Research Fellowship Programme)
UK Department of Health (Policy Research Programme)
Wellcome Trust

Manuscript reviewer for 14 scientific journals:

Biomedical Engineering and Physics Express
British Journal of Radiology
Clinical Physics and Physiological Measurement
Cost Effectiveness and Resource Allocation
IET Science Measurement and Technology
Journal of Endocrinological Investigation
Journal of Medical Engineering and Technology
Journal of Physics D: Applied Physics,
Journal of Radiological Protection
Measurement Science and Technology
Medical Engineering and Physics
Physics in Medicine and Biology
Reports on Progress in Physics,
Ultrasound in Medicine and Biology

Committees

2017-Present Member: Honours Nominations Advisory Committee, Institute of Physics and Engineering in Medicine (IPEM)

2016-Present Lay Member: University Research Integrity and Ethics Committee, Cardiff University

2013-Present Member: Board of Studies, MSc in Clinical Science (Medical Physics) and MSc in Medical Radiation Physics, Swansea University

2011-2012 Subject Expert and Lead Assessor for Radiation Protection Research Commissioning: Policy Research Programme, Department of Health (London)

2010-2015 Member and Chair, Authorisations Working Group: Committee on Medical Aspects of Radiation in the Environment (COMARE), Department of Health (London); member of Medical Practices sub-committee from 2011

2009-2013 Chair: Bone Densitometry Training and Advisory Panel (member until 2015) and member: Clinical and Scientific Committee, National Osteoporosis Society

2009-2011 Member and medical physics representative: National Imaging Programme Board (NIPB), Welsh Government

2005-2008 Member: Stakeholder Boards, National Leadership and Innovation Agency for Healthcare and Workforce Development Unit, NHS Wales

2004-2008 Chair: Welsh Scientific Advisory Committee (WSAC) (member from 2001-2017 and vice-chairman 2002-2004) and member: Joint Professional Forum, Department of Health and Social Care, Welsh Government

2004-Present Member: Fellowship Panel, Institute of Physics

2004-2009 Vice Chair: Imaging Modernisation Forum, Welsh Government

2004-2006 Member: Advisory Board for Healthcare Standards in Wales, Welsh Government

2003-2013 Member: Administration of Radioactive Substances Advisory Committee (ARSAC), Department of Health (London) and Chair, Therapy sub-group from 2010

2003-2004 Chair: Medical Physics and Clinical Engineering sub-committee, WSAC (member 1998-2017 and Vice-chairman 2001-2003)

2002-Present Member: All Wales Osteoporosis Advisory Group Committee (Treasurer 2005-2017)

2001-2009 Chair: Cardiff and District Group, National Osteoporosis Society (Treasurer from 1994 and founder member from 1990)

1993-1996 Honorary President, Cymdeithas Wyddonol Cylch Caerdydd (Cardiff and District Scientific Society), Treasurer 1986-1991

1983-1986 Secretary/Treasurer: South Wales Branch Committee, Institute of Physics (member on three occasions from 1974-1987)

1983-1986 Secretary, Publications Committee and member, Scientific Committee, Institute of Physical Sciences in Medicine (IPSM) (Publications Committee member 1981-1983)

1981-1983 Secretary: South Western Group, Hospital Physicists Association

1978-1981 Regional Representative for Wales, Hospital Physicists Association

1973-1975 Chairman: Physics Department Staff-Student Committee and Secretary: Physics Society, University College Cardiff

1970-1972 Treasurer: Cymdeithas Dafydd ap Gwilym (Oxford University Welsh Society)

2020

Fenwick, A. J., Collins, S. M., Evans, W. D., Ferreira, K. M., Paisey, S. J., Robinson, A. P. and Marshall, C. 2020. Absolute standardisation and determination of the half-life and gamma emission intensities of 89Zr. Applied Radiation and Isotopes 166, article number: 109294. (10.1016/j.apradiso.2020.109294)
Muller, I. et al. 2020. CATS II long-term anthropometric and metabolic effects of maternal sub-optimal thyroid function in offspring and mothers. Journal of Clinical Endocrinology and Metabolism 105(7), article number: dgaa129. (10.1210/clinem/dgaa129)

2011

Luzio, S. et al. 2011. Effects of lifestyle advice in persons with newly diagnosed type 2 diabetes. Diabetes and Primary Care 13, pp. 276-283.
Anburajan, M., Kumar, D. A., Sapthagirivasan, V. and Evans, W. D. 2011. Evaluation of osteoporosis in Indian women and men using peripheral dual-energy x-ray absorptiometry (pDXA). Presented at: 2011 International Conference on Bioscience, Biochemistry and Bioinformatics, Sentaosa, Singapore, 26-28 Feb 2011International Proceedings of Chemical, Biological and Environmental Engineering, Vol. 5. pp. 470-474.

2010

Bell, W., Colley, J., Gwynne, J. R., Glazier, P., Evans, W. D. and Darlington, S. E. 2010. ACE ID genotype and leg power in Rugby Union players. Journal of Sports Medicine and Physical Fitness 50(3), pp. 350-355.
Bell, W., Evans, W. D. and Darlington, S. E. 2010. Geometry of the femoral neck and the lumbar spine: the effect of atypical high-impact modalities between playing units in young adult male rugby union football players. International Journal of Body Composition Research 8, pp. 95-102.

2009

Bolton, C. E., Stone, M. D., Edwards, P. H., Duckers, J. M., Evans, W. D. and Shale, D. J. 2009. Circulating matrix metalloproteinase-9 and osteoporosis in patients with chronic obstructive pulmonary disease. Chronic Respiratory Disease 6(2), pp. 81-87. (10.1177/1479972309103131)
Watson, S., Blundell, H. L., Evans, W., Griffiths, H., Newcombe, R. G. and Rees, D. A. 2009. Can abdominal bioelectrical impedance refine the determination of visceral fat from waist circumference?. Physiological Measurement 30(7), pp. N53-N58. (10.1088/0967-3334/30/7/N01)

2008

Bolton, C. E. et al. 2008. What community measurements can be used to predict bone disease in patients with COPD?. Respiratory Medicine 102(5), pp. 651-657. (10.1016/j.rmed.2007.12.027)

2007

Sabit, R. et al. 2007. Arterial stiffness and osteoporosis in chronic obstructive pulmonary disease. American Journal of Respiratory and Critical Care Medicine 175(12), pp. 1259-65. (10.1164/rccm.200701-067OC)
Chudleigh, R. A., Dunseath, G. J., Evans, W., Harvey, J. N., Evans, P., Ollerton, R. and Owens, D. R. 2007. How reliable is estimation of glomerular filtration rate at diagnosis of type 2 diabetes?. Diabetes care 30(2), pp. 300-5. (10.2337/dc06-1688)

2006

Bell, W., Warner, J. T., Evans, W., Webb, D. K. H., Mullen, R. H. and Gregory, J. W. 2006. Perception of effort at low and moderate intensity exercise in survivors of childhood acute lymphoblastic leukaemia. Annals of Human Biology 33(3), pp. 357-371. (10.1080/03014460600687382)

2005

Morris, R. J., Elsaid, M., Elgazzar, A. H., Zaid, T. M., Evans, W. and Woodcock, J. P. 2005. The effect of intermittent pneumatic compression on the bone uptake of 99mTc-labelled methylene diphosphonate in the lower limb. Archives of Orthopaedic and Trauma Surgery 125(5), pp. 348-354. (10.1007/s00402-005-0811-9)
Sim, M. F. V. et al. 2005. Cost effectiveness analysis of using quantitative ultrasound as a selective pre-screen for bone densitometry. Technology and Health Care 13(2), pp. 75-85. (10.3233/THC-2005-13201)
Bell, W., Evans, W. D., Cobner, D. M. and Eston, R. G. 2005. The regional placement of bone mineral mass, fat mass, and lean soft tissue mass in young adult rugby union players. Ergonomics 48(11-14), pp. 1462-1472. (10.1080/00140130500101007)
Evans, W. D. 2005. Sentinel node biopsy and the role of nuclear medicine. Journal of Medical Physics 30(3), pp. 102-105.

2004

Bolton, C. E. et al. 2004. Associated loss of fat-free mass and bone mineral density in chronic obstructive pulmonary disease. American Journal of Respiratory and Critical Care Medicine 170(12), pp. 1286-1293. (10.1164/rccm.200406-754OC)
Bell, W., Davies, J. S., Evans, W. D., Scanlon, M. . and Mullen, R. 2004. Somatic characteristics and cardiovascular risk factors in growth hormone deficiency: A randomized, double-blind, placebo-controlled study of the effect of treatment with recombinant human growth hormone. American Journal of Human Biology 16(5), pp. 533-543. (10.1002/ajhb.20055)
Sim, M. F. V., Stone, M., Johansen, A., Ho, P., Pettit, R. J. and Evans, W. D. 2004. An analysis of an open access general practitioner bone densitometry service. International Journal of Clinical Practice 58(3), pp. 300-305. (10.1111/j.1368-5031.2004.00151.x)
Davies, J. H., Evans, B. A. J., Jones, E., Evans, W. D., Jenney, M. E. M. and Gregory, J. W. 2004. Osteopenia, excess adiposity and hyperleptinaemia during 2 years of treatment for childhood acute lymphoblastic leukaemia without cranial irradiation. Clinical Endocrinology 60(3), pp. 358-65. (10.1111/j.1365-2265.2003.01986.x)
Warner, J., Evans, W., Webb, D. K. H. and Gregory, J. 2004. Pitfalls in the assessment of body composition in survivors of acute lymphoblastic leukaemia. Archives of Disease in Childhood 89(1), pp. 64-68.

2003

Ionescu, A. A., Evans, W. D., Pettit, R. J., Nixon, L. S., Stone, M. D. and Shale, D. J. 2003. Hidden depletion of fat-free mass and bone mineral density in adults with cystic fibrosis. Chest 124(6), pp. 2220-2228. (10.1378/chest.124.6.2220)
Bolton, C. E., Ionescu, A. A., Evans, W. D., Pettit, R. J. and Shale, D. J. 2003. Altered tissue distribution in adults with cystic fibrosis. Thorax 58(10), pp. 885-889. (10.1136/thorax.58.10.885)

2002

Banerjee, I., Shortland, G. J., Evans, W. and Gregory, J. W. 2002. Osteogenesis imperfecta and intravenous pamidronate. Archives of Disease in Childhood 87(6), pp. 562-563. (10.1136/adc.87.6.562-a)
Hampson, G. et al. 2002. Comparison of the humoral markers of bone turnover and bone mineral density in patients on haemodialysis and continuous ambulatory peritoneal dialysis. Nephron 91(1), pp. 94-102. (10.1159/000057610)
Warner, J. T., Evans, W. D., Webb, D. K. and Gregory, J. W. 2002. Body composition of long-term survivors of acute lymphoblastic leukaemia. Medical and Pediatric Oncology 38(3), pp. 165-172. (10.1002/mpo.1304)
Ionescu, A. et al. 2002. Pulmonary function, body composition, and protein catabolism in adults with cystic fibrosis. American journal of respiratory and critical care medicine 165(4), pp. 495-500.

2001

Anburajan, M. et al. 2001. Low cost mass screening tool for evaluating post-menopausal osteoporosis: a breakthrough for the developing world. Bombay Hospital Journal 43, pp. 253-260.
Anburajan, M. et al. 2001. Evaluation of post-menopausal osteoporosis using DXA, Singh's index, radiographic hip geometry and serum biochemical analysis: a comparison. Journal of the International Medical Sciences Academy 14, pp. 186-190.

2000

Sim, M. V., Stone, M., Johansen, A. and Evans, W. 2000. Cost effectiveness analysis of BMD referral for DXA using ultrasound as a selective pre-screen in a group of women with low trauma Colles’ fractures. Technology and Health Care 8(5), pp. 277-284. (10.3233/THC-2000-8503)
Ionescu, A. A., Nixon, L. S., Evans, W. D., Stone, M. D., Lewis-Jenkins, V., Chatham, K. and Shale, D. J. 2000. Bone density, body composition, and inflammatory status in Cystic Fibrosis. American Journal of Respiratory and Critical Care Medicine 162(3), pp. 789-794. (10.1164/ajrccm.162.3.9910118)
Bell, W., Davies, J. S., Evans, W. D. and Scanlon, M. F. 2000. Effect of recombinant human growth hormone on regional tissue distribution in growth hormone-deficient males. Annals of the New York Academy of Sciences 904, pp. 576-583. (10.1111/j.1749-6632.2000.tb06519.x)
Bell, W., Cobner, D. M. and Evans, W. D. 2000. Prediction and validation of fat-free mass in the lower limbs of young adult male Rugby Union players using dual-energy X-ray absorptiometry as the criterion measure. Ergonomics 43(10), pp. 1708-1717. (10.1080/001401300750004113)

1999

Cowan, F. J., Evans, W. D. and Gregory, J. W. 1999. Metabolic effects of discontinuing growth hormone treatment. Archives of Disease in Childhood 80(6), pp. 517-523. (10.1136/adc.80.6.517)
Johansen, A., Evans, W. and Stone, M. 1999. Bone assessment in elderly women: what does a low bone ultrasound result tell us about bone mineral density?. Archives of Gerontology and Geriatrics 28(3), pp. 239-246. (10.1016/s0167-4943(99)00010-2)
Warner, J. T., Evans, W. D., Webb, D. K., Bell, W. and Gregory, J. W. 1999. Relative osteopenia after treatment for acute lymphoblastic leukemia. Pediatric Research 45(4 pt 1), pp. 544-551. (10.1203/00006450-199904010-00014)
Bell, W., Davies, J. S., Evans, W. D. and Scanlon, M. F. 1999. Strength and its relationship to changes in fat-free mass, total body potassium, total body water and IGF-1 in adults with growth hormone deficiency: effect of treatment with growth hormone. Annals of Human Biology 26(1), pp. 63-78. (10.1080/030144699282985)

1998

Playle, R. A., Ollerton, R. L., Dunstan, F. D. J., Evans, W. D., Burch, A., Luzio, S. D. and Owens, D. R. 1998. Determining true glomerular filtration status in newly presenting type 2 diabetic subjects using age and sex adjustment. Diabetes Care 21(11), pp. 1893-1896. (10.2337/diacare.21.11.1893)
Hampson, G., Evans, C., Petitt, R. J., Evans, W. D., Woodhead, S. J., Peters, J. R. and Ralston, S. H. 1998. Bone mineral density, collagen type 1 alpha 1 genotypes and bone turnover in premenopausal women with diabetes mellitus. Diabetologia 41(11), pp. 1314-1320. (10.1007/s001250051071)
Evans, W. D., McClagish, H. and Trudgett, C. 1998. Factors affecting the in vivo precision of bioelectrical impedance analysis. Applied Radiation and Isotopes 49(5-6), pp. 485-487. (10.1016/s0969-8043(97)00061-4)
Warner, J. T., Cowan, F. J., Dunstan, F. D. J., Evans, W. D., Webb, D. K. and Gregory, J. 1998. Measured and predicted bone mineral content in healthy boys and girls aged 6-18 years: adjustment for body size and puberty. Acta Paediatrica 87(3), pp. 244-249. (10.1111/j.1651-2227.1998.tb01432.x)
Evans, P. M. S., Webster, J., Evans, W. D., Bevan, J. S. and Scanlon, M. F. 1998. Radioiodine treatment in unsuspected pregnancy. Clinical Endocrinology 48(3), pp. 281-283. (10.1046/j.1365-2265.1998.00423.x)
Hanna, F. W. F., Pettit, R. J., Ammari, F., Evans, W. D., Sandeman, D. and Lazarus, J. H. 1998. Effect of replacement doses of thyroxine on bone mineral density. Clinical Endocrinology 48(2), pp. 229-234. (10.1046/j.1365-2265.1998.00387.x)

1997

Byrne, P. A. C., Evans, W. D. and Rajan, K. T. 1997. Does vasectomy predispose to osteoporosis?. British Journal of Urology 79(4), pp. 599-601. (10.1046/j.1464-410x.1997.00124.x)
Cowan, F. J., Warner, J. T., Dunstan, F. D. J., Evans, W. D., Gregory, J. W. and Jenkins, H. R. 1997. Inflammatory bowel disease and predisposition to osteopenia. Archives of Disease in Childhood 76(4), pp. 325-329. (10.1136/adc.76.4.325)

1996

Banning, A. P., Ramsey, M. W., Jones, E. A., Evans, W., Carolan, G., Jones, C. H. and Henderson, A. H. 1996. Flosequinan in chronic heart failure: how is exercise capacity improved?. European Journal of Clinical Pharmacology 51(2), pp. 133-138. (10.1007/s002280050173)
Davies, J. S., Bell, W., Evans, W., Villis, R. J. and Scanlon, M. F. 1996. Body composition derived from whole body counting of potassium in growth hormone-deficient adults: a possible low intracellular potassium concentration. Journal of Clinical Endocrinology and Metabolism 81(5), pp. 1720-1723. (10.1210/jcem.81.5.8626822)
Worwood, M., Evans, W. D., Villis, R. J. and Burnett, A. K. 1996. Iron absorption from a natural mineral water (Spatone Iron-Plus). Clinical and Laboratory Haematology 18(1), pp. 23-27. (10.1111/j.1365-2257.1996.tb00732.x)
Lewis, N. P., Banning, A. P., Cooper, J. P., Shyam Sundar, A., Facey, P. E., Evans, W. D. and Henderson, A. H. 1996. Impaired matching of perfusion and ventilation in heart failure detected by 133xenon. Basic Research in Cardiology 91, pp. 45-49. (10.1007/BF00810523)

1995

Barrington, J. W., Fern-Davies, H., Adams, R. J., Evans, W. D., Woodcock, J. P. and Stephenson, T. P. 1995. Bile acid dysfunction after clam enterocystoplasty. British Journal of Urology 76(2), pp. 169-171. (10.1111/j.1464-410x.1995.tb07667.x)
Bell, W., Davies, J. S., Evans, W. D. and Scanlon, M. F. 1995. The validity of estimating total body fat and fat-free mass from skinfold thickness in adults with growth hormone deficiency. Journal of Clinical Endocrinology and Metabolism 80(2), pp. 630-636. (10.1210/jcem.80.2.7852531)
Evans, W. D., Jones, E. A. and Owen, G. M. 1995. Factors affecting the in vivo precision of broad-band ultrasonic attenuation. Physics in Medicine and Biology 40(1), pp. 137-151. (10.1088/0031-9155/40/1/012)

1994

Coles, R. J., Clements, D. G. and Evans, W. D. 1994. Measurement of height: practical considerations for the study of osteoporosis. Osteoporosis International 4(6), pp. 353-356. (10.1007/bf01622197)
Holmes, J. A., Evans, W. D., Coles, R. J., Ramsahoye, B. and Whittaker, J. A. 1994. Dual energy x-ray absorptiometry measurements of bone mineral density in myeloma. European Journal of Haematology 53(5), pp. 309-311. (10.1111/j.1600-0609.1994.tb01327.x)
Cooper, A. M., O'Sullivan, M. M., Clements, D., Compston, J. E., Evans, W. D. and Evans, C. 1994. Long term follow up of spinal trabecular bone mineral density in women with non-steroid treated rheumatoid arthritis. Annals of the Rheumatic Diseases 53(2), pp. 149-149. (10.1136/ard.53.2.149)
Clements, D., Evans, W. D., Ryde, S. J. S., Rhodes, J. and Compston, J. E. 1994. Total body calcium in women with inflammatory bowel disease treated with hormone replacement therapy. European Journal of Gastroenterology and Hepatology 6(1), pp. 21-26.
Ryde, S. J. S., Bowen-Simpkins, K., Bowen-Simpkins, P., Evans, W. D., Morgan, W. D. and Compston, J. E. 1994. The effect of oestradiol implants on regional and total bone mass: a three year longitudinal study. Clinical Endocrinology 40(1), pp. 33-38. (10.1111/j.1365-2265.1994.tb02440.x)

1993

Clements, D., Compston, J. E., Evans, C. and Evans, W. D. 1993. Bone loss in normal British women: a 5 year follow-up. British Journal of Radiology 66(792), pp. 1134-1137. (10.1259/0007-1285-66-792-1134)
Motley, R. J., Clements, D., Evans, W. D., Crawley, E. O., Evans, C., Rhodes, J. and Compston, J. E. 1993. A four-year longitudinal study of bone loss in patients with inflammatory bowel disease. Bone and Mineral 23(2), pp. 95-104. (10.1016/s0169-6009(08)80046-3)
Clements, D., Compston, J. E., Evans, W. D. and Rhodes, J. 1993. Hormone replacement therapy prevents bone loss in patients with inflammatory bowel disease. Gut 34(11), pp. 1543-1546. (10.1136/gut.34.11.1543)
Newcombe, R. G., Clements, D. G. and Evans, W. D. 1993. Alcohol and bone density. British Medical Journal 307(6899), pp. 323-323. (10.1136/bmj.307.6899.323-c)
Clements, D., Compston, J. E., Rhodes, J., Evans, W. D. and Smith, P. M. 1993. Low-dose corticosteroids in chronic active hepatitis do not adversely affect spinal bone. European Journal of Gastroenterology and Hepatology 5(7), pp. 543-547.

1992

Clements, D., Motley, R. J., Evans, W. D., Harries, A. D., Rhodes, J., Coles, R. J. and Compston, J. E. 1992. Longitudinal study of cortical bone loss in patients with inflammatory bowel disease. Scandinavian Journal of Gastroenterology 27(12), pp. 1055-1060. (10.3109/00365529209028138)
Fehily, A. M., Coles, R. J., Evans, W. D. and Elwood, P. C. 1992. Factors affecting bone density in young adults. American Journal of Clinical Nutrition 56, pp. 579-586. (10.1093/ajcn/56.3.579)
Ryder, R. E. J. et al. 1992. Detailed investigation of the cause of impotence in 20 diabetic men. Practical Diabetes 9(1), pp. 7-11. (10.1002/pdi.1960090103)

1991

Yee, M. K., Evans, W. D., Facey, P. E., Hayward, M. W. J. and Rosen, M. 1991. Gastric emptying and small bowel transit in male volunteers after I.M. ketorolac and morphine. British Journal of Anaesthesia 67(4), pp. 426-431. (10.1093/bja/67.4.426)
Clements, D. and Evans, W. D. 1991. The health of the nation. British Medical Journal 303(6795), pp. 184-184. (10.1136/bmj.303.6795.184-a)
Neades, G. T., Evans, W. D. and Mansel, R. E. 1991. Choice of agent and prediction of systemic toxicity in isolated hyperthermic limb perfusion. Regional Cancer Treatment 3(6), pp. 252-255.
Ryde, S. J. S. et al. 1991. Total body calcium in patients with inflammatory bowel disease: a longitudinal study. Clinical Science 80(4), pp. 319-324. (10.1042/cs0800319)
Rose, J., Compston, J. E., Crawley, E. O., Evans, W. D., Evans, C. and Smith, P. M. 1991. Osteoporosis associated with chronic liver disease. European Journal of Gastroenterology and Hepatology 3(1), pp. 63-69.

1990

Maughan, T. S. et al. 1990. OC125 immunoscintigraphy in ovarian carcinoma: a comparison with alternative methods of assessment. Clinical Oncology 2(4), pp. 199-205. (10.1016/s0936-6555(05)80168-2)
Pugh, N. D., Owen, G. M. and Evans, W. D. 1990. Temporal instabilities associated with a planar high purity germanium detector. Physics in Medicine and Biology 35(5), pp. 625-632. (10.1088/0031-9155/35/5/003)
Wright, C. D. P., Crawley, E. O., Evans, W. D., Garrahan, N. J., Mellish, R. W. E., Croucher, P. I. and Compston, J. E. 1990. The relationship between spinal trabecular bone mineral content and iliac crest trabecular bone volume. Calcified Tissue International 46(3), pp. 162-165. (10.1007/bf02555037)

1989

Facey, P., Hayward, M. W. J. and Evans, W. D. 1989. Radionuclide phallography in the investigation of the impotent patient. Radiography Today 55(631), pp. 14-17.

1988

Crawley, E. O., Evans, W. D. and Owen, G. M. 1988. A theoretical analysis of the accuracy of single-energy CT bone-mineral measurements. Physics in Medicine and Biology 33(10), pp. 1113-1127. (10.1088/0031-9155/33/10/002)
Compston, J. E., Evans, W. D., Crawley, E. O. and Evans, C. 1988. Bone mineral content in normal UK subjects. British Journal of Radiology 61(727), pp. 631-636. (10.1259/0007-1285-61-727-631)
Evans, W. D., Crawley, E. O., Compston, J. E., Evans, C. and Owen, G. M. 1988. Broadband ultrasonic attenuation and bone mineral density. Clinical Physics and Physiological Measurement 9(2), pp. 163-165. (10.1088/0143-0815/9/2/109)

1987

Compston, J. E. et al. 1987. Osteoporosis in patients with inflammatory bowel disease. Gut 28(4), pp. 410-415. (10.1136/gut.28.4.410)

1979

Evans, W. D. and Gough, W. 1979. Observation of modulation in the transfer of orientation by collisions of the second kind. Journal de Physique 40(10), pp. 961-964. (10.1051/jphys:019790040010096100)
Evans, W. D. and Gough, W. 1979. Anomalous Hanle effect signals in sensitised fluorescence. Journal of Physics B: Atomic and Molecular Physics 12(14), pp. 2271-2275. (10.1088/0022-3700/12/14/011)

1978

Blendis, L. M., Smith, P. M., Lawrie, B. W., Stephens, M. R. and Evans, W. D. 1978. Portal hypertension in vinyl chloride monomer workers: a hemodynamic study. Gastroenterology 75(2), pp. 206-211. (10.1016/0016-5085(78)90403-1)

Cardiff University

1998-2001 Lecturer (Radiation Physics and Radiation Protection): Intra-operative Lymphatic Mapping Course, Department of Surgery, School of Medicine

1996-2000 Supervisor (Medical Physics): special study module for MB BCh medical students, School of Medicine

1995-2012 Lecturer (Digital Imaging): Oral Radiography module for BDS dental students, School of Dentistry

1990-2014 Lecturer, module organiser (Radiation in Medical Diagnosis) and project supervisor: BSc in Physics with Medical Physics, School of Physics and Astronomy

1988-1991 Lecturer (Nuclear Medicine Instrumentation): MSc in Medical Electronics, University College, Cardiff

1982-1990 Lecturer and module organiser (Medical Physics): BSc in Physics, University College, Cardiff

1972-1975 Demonstrator: Physics laboratories and exercise classes, University College Cardiff

Professional Bodies

2004-2007 Lecturer (Radiation Probes, Radionuclide Imaging and Radiation Protection): NEW START sentinel lymph node biopsy training programme, Royal College of Surgeons

2002-2013 Lecturer (Physics and Radiation Protection) and portfolio assessor: National Training Scheme for Bone Densitometry, National Osteoporosis Society

1990-2013 Lecturer (Radiological Physics): South Wales Training Scheme in Clinical Radiology, Royal College of Radiologists

1979-1984 Lecturer (Physics): School of Radiography, University Hospital of Wales for Diploma of the College of Radiographers

Other Organisations

2009-2015 Lecturer (Radiological Physics): Clinical Radiology Training Scheme, Sheik Khalifa Medical City, Abu Dhabi and Tawam Hospital, Al Ain, Emirate of Abu Dhabi Health Authority, United Arab Emirates

2009-2013 Lecturer (Radiological Physics): BSc in Clinical Technology, School of Health Science, Swansea University

1997-2014 Lecturer (Radiological Physics): Clinical Radiology Training Scheme, American University of Beirut Medical Centre, Beirut, Lebanon

Training Roles

2018-Present Member: Scientist Training Programme (STP) and Higher Specialist Scientific Training (HSST) Programme in Medical Physics, National School of Healthcare Science (NSHCS)

2016 Member: Development and Implementation Team, HSST in Medical Physics in Wales, Workforce, Education and Development Services (WEDS), NHS Wales

2013-2014 Member and curriculum content author: Working Group for the HSST in Medical Physics, Royal College of Radiologists (RCR) and Institute of Physics and Engineering in Medicine (IPEM)

2010-Present Editor of Physics Module: Radiology Integrated Training Initiative (RITI) on-line learning programme for radiologists, RCR, Department of Health and the NHS

2004-2009 Member: Physics Working Group, RCR (Senior Physicist 2007-2008 and member of Fellowship Examining Board) – author of revised curriculum for FRCR Part 1 Physics examination approved by the Postgraduate Medical Education and Training Board (PMETB)

2002-2006 Chair: Training Centre Accreditation Panel, IPEM (member to 2008)

1999-2010 Nuclear Medicine examiner and member of the Board of Examiners: Part 1 training scheme for Medical Physicists and Clinical Engineers in Health Care, IPEM

Summary

Throughout my career, I have undertaken collaborative research and development with university academics and professional colleagues from a wide range of medical and surgical specialties.

This work has mainly involved the clinical application of physics and engineering in nuclear medicine, bone densitometry and body composition measurement. However, it has also included radiation safety and the evaluation of equipment and techniques. For an indication of the range of projects, please see the papers under the Publications tab, although a more comprehensive list appears in my ResearchGate profile.

My current research interests include optimisation in x-ray radiological imaging, standardisation of activity in radionuclide imaging, and identification and quantitation of radionuclidic impurities in radiopharmaceuticals and radioactive by-products in medical radioisotope production.

I am interested in co-supervising postgraduate research students in the following disciplines:

Medical radiation physics and engineering
Medical applications of radioactivity
Medical imaging physics and engineering
Nuclear medicine physics
Measurement of bone density and body composition

Current supervision

Andrew Fenwick

Research student

Past projects

I was a co-supervisor for the following Cardiff University PhD projects:

Identification and quantification of radioactive impurities in medical radionuclides - Ansam Al-Obaidi (awarded 2019)
A robust technique for the detection and quantification of abdominal aortic calcification using dual-energy x-ray absorptiometry - Karima Elmasri (awarded 2018)
Calibration of a scanning whole body counter for measurement of the activity of gamma emitting radionuclides in the human body – Thaer Al‑Musawi (awarded 2018)
Comparison of peripheral quantitative computed tomography and magnetic resonance imaging for tissue characterisation in the gastrocnemius muscle – Fahad Al-Gohani (awarded 2017)
Monte Carlo simulation applied to uncertainties in iodine-123 assay and thyroid uptake measurement - Matthew Talboys (awarded 2016)
The influence of accurate attenuation correction on quantitative gamma camera imaging - Helen Blundell (awarded 2013)
Effect of intra-abdominal fat on the accuracy of DXA lumbar spine bone mineral density measurement using DXA body composition measurements - Sarah Darlington (awarded 2013)
Measurement of caesium-137 in the human body using a whole body counter - Elkhadra Elessawi (awarded 2011)