Dr T K Carpenter

        Outdoor head and shoulder image of Dr Trevor Carpenter

Ecology Modeller

Our team develops models that predict dispersal of particulate and dissolved matter in the marine environment, using primarily FVCOM and New DEPOMOD.

We supply predictions of deposition and impacts to support applied science and modelling under contract for the aquaculture industry via SRSL.

Contact details:

Education qualifications

2001 MSc Medical Physics (Imaging and Image Processing). Aberdeen University

1998 PhD Haemodynamics of Arterial Bypass Grafts. Liverpool University

1992 BEng (Hons) Telecommunications and Electronic Engineering. University of North London

Using SAMS' physical oceanographic model of the West Coast of Scotland (WestComs), our team can develop models of the near and far field dispersal of particulate and dissolved matter in the marine environment. With a small amount of additional programming effort New DEPOMOD can also process output from another hydrographic model and can be configured to represent different environments or species. We have been working with regulators both in Scotland and abroad to implement changes to the model to integrate New DEPOMOD into their work flow and to adapt it to their regulatory regimes.

Our team has extensive experience of physical, ecological and chemical modelling as well as sample collection and analysis supporting its own applied science and under contract for industrial partners through SRSL.


Accessing consultancy services from SAMS

SAMS consultancy work is delivered through its wholly owned commercial subsidiary, SAMS Research Services Ltd. (SRSL). SRSL operates a comprehensive Quality Management System (QMS) that is accredited to ISO9001:2008 standard, guaranteeing that all projects deliver the best possible service to our customers. All SRSL projects are planned by a professional programme manager who oversees a team of dedicated project managers, all of whom are focussed specifically on client delivery, and have scientific experience and technical expertise in fields relevant to their assigned projects.

For further information concerning commercial enterprise opportunities at SAMS, please contact SRSL by email (info@srsl.com) or phone +44 (0) 1631 559 470.

Peer-reviewed publications

Arba, Francesco; Mair, Grant; Carpenter, Trevor; Sakka, Eleni; Sandercock, Peter AG; Lindley, Richard I; Inzitari, Domenico; Wardlaw, Joanna M (2017) Cerebral White Matter Hypoperfusion Increases with Small-Vessel Disease Burden. Data From the Third International Stroke Trial. Journal of Stroke and Cerebrovascular Diseases, 26: 1506-1513

Wardlaw, Joanna M; Kummer, Rudiger; CarpenterTrevor; Parsons, Mark; Lindley, Richard I; Cohen, Geoff; Murray, Veronica; Kobayashi, Adam; Peeters, Andre; Chappell, Francesca (2015) Protocol for the perfusion and angiography imaging sub‐study of the Third International Stroke Trial (IST‐3) of alteplase treatment within six‐hours of acute ischemic stroke. International Journal of Stroke, 10: 956-968

Rekik, Islem; Allassonnière, Stéphanie; Luby, Marie; CarpenterTrevor K; Wardlaw, Joanna M (2015) Phase-based metamorphosis of diffusion lesion in relation to perfusion values in acute ischemic stroke. NeuroImage: Clinical, 9: 44-49

Rekik, Islem; Allassonnière, Stéphanie; CarpenterTrevor K; Wardlaw, Joanna M (2014) Using longitudinal metamorphosis to examine ischemic stroke lesion dynamics on perfusion-weighted images and in relation to final outcome on T2-w images. NeuroImage: Clinical, 5,332-340

Karaszewski, Bartosz; CarpenterTrevor K; Thomas, Ralph GR; Armitage, Paul A; Lymer, Georgina Katherine S; Marshall, Ian; Dennis, Martin S; Wardlaw, Joanna M (2013) Relationships between brain and body temperature, clinical and imaging outcomes after ischemic stroke. Journal of Cerebral Blood Flow & Metabolism, 33: 1083-1089

Zhu, Fan; Gonzalez, David Rodriguez; CarpenterTrevor; Atkinson, Malcolm; Wardlaw, Joanna (2013) Lesion area detection using source image correlation coefficient for CT perfusion imaging. IEEE Journal of Biomedical and Health Informatics, 17: 950-958

Thomas, Ralph GR; Lymer, G Katherine; Armitage, Paul A; Chappell, Francesca M; Carpenter, Trevor; Karaszewski, Bartosz; Dennis, Martin S; Wardlaw, Joanna M (2013) Apparent diffusion coefficient thresholds and diffusion lesion volume in acute stroke. Journal of Stroke and Cerebrovascular Diseases, 22: 906-909 

Rekik, Islem; Allassonnière, Stéphanie; Durrleman, Stanley; Carpenter, Trevor; Wardlaw, Joanna (2013) Spatiotemporal dynamic simulation of acute perfusion/diffusion ischemic stroke lesions evolution: a pilot study derived from longitudinal MR patient data. Computational and Mathematical Methods in Medicine. Article ID 283593, 13 pages http://dx.doi.org/10.1155/2013/283593

Wintermark, Max; Albers, Gregory W; Broderick, Joseph P; Demchuk, Andrew M; Fiebach, Jochen B; Fiehler, Jens; Grotta, James C; Houser, Gary; Jovin, Tudor G; Lees, Kennedy R (2013) Acute stroke imaging research roadmap II. Stroke, 44: 2628-2639. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4040226/

Wardlaw, Joanna M; Doubal, Fergus N; Valdes-Hernandez, Maria; Wang, Xin; Chappell, Francesca M; Shuler, Kirsten; Armitage, Paul A; Carpenter, Trevor C; Dennis, Martin S (2013) Blood–brain barrier permeability and long-term clinical and imaging outcomes in cerebral small vessel disease. Stroke, 44: 525-527

Wardlaw, Joanna M; Muir, Keith W; Macleod, Mary-Joan; Weir, Christopher; McVerry, Ferghal; Carpenter, Trevor; Shuler, Kirsten; Thomas, Ralph; Acheampong, Paul; Dani, Krishna (2013) Clinical relevance and practical implications of trials of perfusion and angiographic imaging in patients with acute ischaemic stroke: a multicentre cohort imaging study. J Neurol Neurosurg Psychiatry, 84: 1001-1007

Rekik, Islem; Allassonnière, Stéphanie; Carpenter, Trevor K; Wardlaw, Joanna M (2012) Medical image analysis methods in MR/CT-imaged acute-subacute ischemic stroke lesion: Segmentation, prediction and insights into dynamic evolution simulation models. A critical appraisal. NeuroImage: Clinical, 1: 164-178

Zhu, Fan; Carpenter, Trevor; Gonzalez, David Rodriguez; Atkinson, Malcolm; Wardlaw, Joanna (2012) Computed tomography perfusion imaging denoising using Gaussian process regression. Physics in Medicine & Biology, 57: 183-198

Zhu, Fan; Gonzalez, David Rodriguez; Carpenter, Trevor; Atkinson, Malcolm; Wardlaw, Joanna (2012) Parallel perfusion imaging processing using GPGPU. Computer Methods and Programs in Biomedicine, 108: 1012-1021

Armitage, Paul A; Farrall, Andrew J; Carpenter, Trevor K; Doubal, Fergus N; Wardlaw, Joanna M (2011) Use of dynamic contrast-enhanced MRI to measure subtle blood–brain barrier abnormalities. Magnetic Resonance Imaging, 29: 305-314

Cvoro, Vera; Marshall, Ian; Armitage, Paul A; Bastin, Mark E; Carpenter, Trevor; Rivers, Carly S; Dennis, Martin S; Wardlaw, Joanna M (2010) MR diffusion and perfusion parameters: relationship to metabolites in acute ischaemic stroke. Journal of Neurology, Neurosurgery & Psychiatry, 81: 185-191

González, David Rodríguez; Carpenter, Trevor; van Hemert, Jano I; Wardlaw, Joanna (201) An open source toolkit for medical imaging de-identification. European Radiology, 20: 1896-1904

Karaszewski, B; Thomas, RGR; Chappell, FM; Armitage, PA; Carpenter, TK; Lymer, GKS; Dennis, MS; Marshall, I; Wardlaw, JM (2010) Brain choline concentration: Early quantitative marker of ischemia and infarct expansion? Neurology, 75: 850-856

Wardlaw, Joanna M; Doubal, Fergus; Armitage, Paul; Chappell, Francesca; Carpenter, Trevor; Muñoz Maniega, Susana; Farrall, Andrew; Sudlow, Cathie; Dennis, Martin; Dhillon, Baljean (2009) Lacunar stroke is associated with diffuse blood–brain barrier dysfunction. Annals of Neurology, 65: 194-202

Cvoro, Vera; Wardlaw, Joanna M; Marshall, Ian; Armitage, Paul A; Rivers, Carly S; Bastin, Mark E; Carpenter, Trevor K; Wartolowska, Karolina; Farrall, Andrew J; Dennis, Martin S (2009) Associations between diffusion and perfusion parameters, N-acetyl aspartate, and lactate in acute ischemic stroke. Stroke, 40: 767-772

Karaszewski, B; Thomas, R; Marshall, I; Armitage, PA; Carpenter, T; Lymer, K; Dennis, M; Wardlaw, JM (2009) Mr Spectroscopy Choline And Lactate Brain Concentration Measurements For Early Determination Of Prognosis And Direction Of Infarct Expansion In Acute Stroke Patients. Cerebrovascular Diseases, 27: 37-38

Wardlaw, Joanna M; Farrall, Andrew; Armitage, Paul A; Carpenter, Trevor; Chappell, Francesca; Doubal, Fergus; Chowdhury, Debashish; Cvoro, Vera; Dennis, Martin S (2008) Changes in background blood–brain barrier integrity between lacunar and cortical ischemic stroke subtypes. Stroke, 39: 1327-1332

Kane, Ingrid; Carpenter, Trevor; Chappell, Francesca; Rivers, Carly; Armitage, Paul; Sandercock, Peter; Wardlaw, Joanna (2007) Comparison of 10 different magnetic resonance perfusion imaging processing methods in acute ischemic stroke: effect on lesion size, proportion of patients with diffusion/perfusion mismatch, clinical scores, and radiologic outcomes. Stroke, 38: 3158-3164

Rivers, CS; Wardlaw, JM; Armitage, PA; Bastin, ME; Carpenter, TK; Cvoro, V; Hand, PJ; Dennis, MS (2006) Do acute diffusion-and perfusion-weighted MRI lesions identify final infarct volume in ischemic stroke? Stroke, 37: 98-104

Bastin, ME; Carpenter, TK; Armitage, PA; Sinha, S; Wardlaw, JM; Whittle, IR (2006) Effects of dexamethasone on cerebral perfusion and water diffusion in patients with high-grade glioma. American Journal of Neuroradiology, 27: 402-408

Marshall, Ian; Karaszewski, Bartosz; Wardlaw, Joanna M; Cvoro, Vera; Wartolowska, Karolina; Armitage, Paul A; Carpenter, Trevor; Bastin, Mark E; Farrall, Andrew; Haga, Kristin (2006) Measurement of regional brain temperature using proton spectroscopic imaging: validation and application to acute ischemic stroke. Magnetic Resonance Imaging, 24: 699-706

Carpenter, Trevor K; Armitage, Paul A; Bastin, Mark E; Wardlaw, Joanna M (2006) DSC perfusion MRI—quantification and reduction of systematic errors arising in areas of reduced cerebral blood flow. Magnetic Resonance in Medicine, 55: 1342-1349

Rivers, Carly S; Wardlaw, Joanna M; Armitage, Paul A; Bastin, Mark E; Carpenter, Trevor K; Cvoro, Vera; Hand, Peter J; Dennis, Martin S (2006) Persistent infarct hyperintensity on diffusion-weighted imaging late after stroke indicates heterogeneous, delayed, infarct evolution. Stroke, 37: 1418-1423

Maniega, S Munoz; Bastin, ME; Armitage, PA; Farrall, AJ; Carpenter, TK; Hand, PJ; Cvoro, V; Rivers, CS; Wardlaw, JM (2004) Temporal evolution of water diffusion parameters is different in grey and white matter in human ischaemic stroke. Journal of Neurology, Neurosurgery & Psychiatry, 75: 1714-1718

Wardlaw, JM; Rivers, CS; Armitage, PA; Carpenter, T; Cvoro, V; Hand, P; Bastin, MF; Dennis, MS (2004) Which MR perfusion lesion identifies the final infarct volume? Stroke, 35: 98-104

Fisher, RK; How, TV; Carpenter, T; Brennan, JA; Harris, PL (2001) Optimising Miller cuff dimensions. The influence of geometry on anastomotic flow patterns. European Journal of Vascular and Endovascular Surgery, 21: 251-260

Rowe, CS; Carpenter, TK; How, TV; Harris, PL (1999) Local haemodynamics of arterial bypass graft anastomoses. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 213: 401-409

Da Silva, AF; Carpenter, T; How, TV; Harris, PL; (1997) Stable vortices within vein cuffs inhibit anastomotic myointimal hyperplasia? European Journal of Vascular and Endovascular Surgery, 14:157-163