Chair in The Institute for Education in Medical and Dental Sciences
Professor Welch graduated from the University of Southampton with a first class honours degree in Physics in 1987 and went on to obtain a PhD in Medical Physics at the University of London (Royal Marsden Hospital) in 1990. After a brief spell in industry (working as a systems analyst for an oil company) he returned to academia, taking up a postdoctoral position and then a faculty position at the University of Utah. In 1997 he returned to the UK, as a lecturer, senior lecturer then Professor at the University of Aberdeen.
My research has focussed on the tomographic radiotracer imaging techniques of Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT) as well as Computed Tomography (CT) in general. I am particularly interested in the development of novel hardware and software to address specific applications. These include clinical applications, preclinical applications and applications in engineering and geosciences.
Developing PET methods to detect changes in brain function. This includes the use of Statistical Parametric Mapping and other statistical tools to detect changes in brain metabolism as measured with FDG-PET.
Measuring changes in cardiac metabolism with PET. This includes developing methods to measure glucose, oxidative and fatty acid metabolism.
Using medical CT scanners to study spontaneous imbibition in rocks. Applications include enhanced oil recovery.
Developing novel tomographic radiotracer imaging techniques to study fluid flow in porous and fractured rocks. Applications may include: enhanced oil recovery, carbon capture and storage and shale gas recovery. Current work uses Monte Carlo simulation techniques to compare PET and SPECT and to develop the optimum hardware and software for the task.
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- McDougald, W, Vanhove, C, Lehnert, A, Lewellen, B, Wright, J, Mingarelli, M, Corral, CA, Schneider, J, Plein, S, Newby, D, Welch, A, Miyaoka, R, Vandenberghe, S & Tavares, AAS 2019, 'Standardization of preclinical PET/CT imaging to improve quantitative accuracy, precision and reproducibility: a multi-center study' Journal of Nuclear Medicine.
- Testa, A, Dall'Angelo, S, Mingarelli, M, Augello, A, Schweiger, L, Welch, A, Elmore, CS, Dawson, D, Sharma, P & Zanda, M 2018, 'Preclinical Evaluation of [18F]LCATD as a PET Tracer to Study Drug-Drug Interactions Caused by Inhibition of Hepatic Transporters' Contrast Media & Molecular Imaging, vol. 2018, 3064751. [Online] DOI: https://doi.org/10.1155/2018/3064751
- Al-Mohammad, A, Norton, MY, Welch, AE & Walton, S 2017, 'Characterization of viability, scarring and hibernation of the myocardium supplied by epicardial coronary arteries with low flow grades' Nuclear Medicine Communications, vol. 38, no. 8, pp. 657-665. [Online] DOI: https://doi.org/10.1097/MNM.0000000000000683
- AlMohammad, A, Norton, MY, Welch, AE, Sharp, PF & Walton, S 2017, 'Gated metabolic myocardial imaging, a surrogate for dual perfusion-metabolism imaging by positron emission tomography' Open Heart, vol. 4, no. 2, e000581, pp. 1-6. [Online] DOI: https://doi.org/10.1136/openhrt-2016-000581
- Testa, A, Dall'Angelo, S, Mingarelli, M, Augello, A, Schweiger, L, Welch, AE, Elmore, CS, Sharma, P & Zanda, M 2017, 'Design, synthesis, in vitro characterization and preliminary imaging studies on fluorinated bile acid derivatives as PET tracers to study hepatic transporters' Bioorganic & Medicinal Chemistry, vol. 25, no. 3, pp. 963-976. [Online] DOI: https://doi.org/10.1016/j.bmc.2016.12.008
- Plucinska, K, Dekeryte, R, Koss, D, Shearer, K, Mody, N, Whitfield, PD, Doherty, MK, Mingarelli, M, Welch, A, Riedel, G, Delibegovic, M & Platt, B 2016, 'Neuronal human BACE1 knock-in induces systemic diabetes in mice' Diabetologia, vol. 59, no. 7, pp. 1513-1523. [Online] DOI: https://doi.org/10.1007/s00125-016-3960-1
- Bain, GH, Collie-Duguid, E, Murray, GI, Gilbert, FJ, Denison, A, McKiddie, F, Ahearn, T, Fleming, I, Leeds, J, Phull, P, Park, K, Nanthakumaran, S, Grabsch, HI, Tan, P, Welch, A, Schweiger, L, Dahle-Smith, A, Urquhart, G, Finegan, M, Matula, KM & Petty, RD 2014, 'Tumour expression of leptin is associated with chemotherapy resistance and therapy-independent prognosis in gastro-oesophageal adenocarcinomas' British Journal of Cancer, vol. 110, no. 6, pp. 1525-1534. [Online] DOI: https://doi.org/10.1038/bjc.2014.45
- Shaikh, S, Welch, A, Ramalingam, SL, Murray, A, Wilson, HM, McKiddie, F & Brittenden, J 2014, 'Comparison of fluorodeoxyglucose uptake in symptomatic carotid artery and stable femoral artery plaques' British Journal of Surgery, vol. 101, no. 3, pp. 363-370. [Online] DOI: https://doi.org/10.1002/bjs.9403
- Lobley, GE, Johnstone, AM, Fyfe, C, Horgan, GW, Holtrop, G, Bremner, DM, Broom, I, Schweiger, L & Welch, A 2014, 'Glucose uptake by the brain on chronic high-protein weight-loss diets with either moderate or low amounts of carbohydrate' British Journal of Nutrition, vol. 111, no. 4, pp. 586-597. [Online] DOI: https://doi.org/10.1017/S0007114513002900
- Welch, A, Mingarelli, M, Riedel, G & Platt, B 2013, 'Mapping Changes in Mouse Brain Metabolism with PET/CT' Journal of Nuclear Medicine, vol. 54, no. 11, pp. 1946-1953. [Online] DOI: https://doi.org/10.2967/jnumed.113.121509