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• 2020

  Accuracy of Peripheral Arterial Disease Registers in UK General Practice: Case-Control Study

  Kyle, D., Boylan, L., Wilson, L., Haining, S., Oates, C., Sims, A., Guri, I., Allen, J., Wilkes, S. & Stansby, G., 22 Sep 2020, In: Journal of primary care & community health. 11

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Peripheral Arterial Disease
  • General Practice
  • Case-Control Studies
  • Blood Vessels
  • Primary Health Care
  2 Downloads (Pure)

• Advancing PPG signal quality and know-how through knowledge translation - from experts to student and researcher

  Huthart, S., Elgendi, M., Zheng, D., Stansby, G. & Allen, J., 21 Dec 2020, In: Frontiers in Digital Health. 2, 7 p., 619692.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • students
  • researchers
  • exercise
  • questionnaires
  • experimental design
  3 Downloads (Pure)

• Age-related changes in pulse risetime measured by multi-site photoplethysmography

  Allen, J., O'Sullivan, J., Stansby, G. & Murray, A., 3 Aug 2020, In: Physiological Measurement. 41, 7, 9 p., 074001.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Photoplethysmography
  • Pulse
  • Blood pressure
  • Blood Pressure
  • Toes
  3 Downloads (Pure)

• Assessment of Hypertension Using Clinical Electrocardiogram Features: A First-Ever Review

  Bird, K., Chan, G., Lu, H., Greef, H., Allen, J., Abbott, D., Menon, C., Lovell, N. H., Chan, W-S., Fletcher, R., Alian, A., Ward, R. & Elgendi, M., 4 Dec 2020, In: Frontiers in Medicine. 7, 17 p., 583331.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  File

  • Electrocardiography
  • Hypertension
  • Blood Pressure
  • Wearable Electronic Devices
  • Blood Pressure Monitors
  1 Downloads (Pure)

• Cuffless Single-Site Photoplethysmography for Blood Pressure Monitoring

  Hosanee, M., Chan, G., Welykholowa, K., Cooper, R., Kyriacou, P. A., Zheng, D., Allen, J., Abbott, D., Menon, C., Lovell, N. H., Howard, N., Chan, W-S., Lim, K., Fletcher, R., Ward, R. & Elgendi, M., 7 Mar 2020, In: Journal of Clinical Medicine. 9, 3, 14 p., 723.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  File

  • Photoplethysmography
  • Blood Pressure
  • Wearable Electronic Devices
  • Hypertension
  • Sample Size
  2 Downloads (Pure)

• Infrared thermography and ulcer prevention in the high-risk diabetic foot: data from a single-blind multicentre controlled clinical trial

  Petrova, N. L., Donaldson, N. K., Tang, W., MacDonald, A., Allen, J., Lomas, C., Leech, N., Ainarkar, S., Bevans, J., Plassmann, P., Kluwe, B., Ring, F., Whittam, A., Rogers, L., McMillan, J., Simpson, R., Donaldson, A. N. A., Machin, G. & Edmonds, M. E., Jan 2020, In: Diabetic Medicine. 37, 1, p. 95-104 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Thermography
  • Diabetic Foot
  • Controlled Clinical Trials
  • Ulcer
  • Foot
  2 Citations (Scopus)

  3 Downloads (Pure)

• Multimodal Photoplethysmography-Based Approaches for Improved Detection of Hypertension

  Welykholowa, K., Hosanee, M., Chan, G., Cooper, R., Kyriacou, P. A., Zheng, D., Allen, J., Abbott, D., Menon, C., Lovell, N. H., Howard, N., Chan, W-S., Lim, K., Fletcher, R., Ward, R. & Elgendi, M., 22 Apr 2020, In: Journal of Clinical Medicine. 9, 20 p., 1203.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Photoplethysmography
  • Hypertension
  • Blood Pressure
  • Wearable Electronic Devices
  • Technology
  2 Downloads (Pure)

• PPGSynth: An innovative toolbox for synthesizing regular and irregular photoplethysmography waveforms

  Tang, Q., Chen, Z., Allen, J., Alian, A., Menin, C., Ward, R. & Elgendi, M., 2 Nov 2020, In: Frontiers in Medicine. 7, 7 p., 597774.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Photoplethysmography
  4 Downloads (Pure)
• 2019

  Between visit variability of thermal imaging of feet in people attending podiatric clinics with diabetic neuropathy at high risk of developing foot ulcers

  Macdonald, A., Petrova, N., Ainarker, S., Allen, J., Lomas, C., Tang, W., Plassmann, P., Whittam, A., Bevans, J., Ring, F., Kluwe, B., Simpson, R., Rogers, L., Machin, G. & Edmonds, M., 2 Sep 2019, In: Physiological Measurement. 40, 8, 084004.

  Research output: Contribution to journal › Article › peer-review

  • Foot Ulcer
  • Infrared imaging
  • Diabetic Neuropathies
  • Foot
  • Hot Temperature
  3 Citations (Scopus)

• Focus collection on thermal imaging in medicine

  Machin, G., Howell, K., Allen, J. & Simpson, R., 30 Oct 2019, In: Physiological Measurement. 40, 3 p., 100301.

  Research output: Contribution to journal › Editorial › peer-review
  1 Citation (Scopus)

• Multi-Site Photoplethysmography Technology for Blood Pressure Assessment: Challenges and Recommendations

  Chan, G., Cooper, R., Hosanee, M., Welykholowa, K., Kyriacou, P. A., Zheng, D., Allen, J., Abbott, D., Lovell, N. H., Fletcher, R. & Elgendi, M., 1 Nov 2019, In: Journal of Clinical Medicine. 8, 11, 14 p., 1827.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  File

  • Photoplethysmography
  • Pulse
  • Technology
  • Blood Pressure
  • Hypertension
  10 Downloads (Pure)

• Nailfold capillaroscopy - How many fingers should be examined to detect abnormality?

  Dinsdale, G., Roberts, C., Moore, T., Manning, J., Berks, M., Allen, J., Anderson, M. E., Cutolo, M., Hesselstrand, R., Howell, K., Pizzorni, C., Smith, V., Sulli, A., Wildt, M., Taylor, C., Murray, A. & Herrick, A. L., Feb 2019, In: Rheumatology. 58, 2, p. 284–288 5 p.

  Research output: Contribution to journal › Article › peer-review

  • Microscopic Angioscopy
  • Fingers
  • Rheumatologists
  • Thumb
  • Ambulatory Care Facilities
  4 Citations (Scopus)

• Negotiating commissioning pathways for the successful implementation of innovative health technology in primary care

  Maniatopoulos, G., Haining, S., Allen, J. & Wilkes, S., 6 Sep 2019, In: BMC Health Services Research. 19, 12 p., 648.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Biomedical Technology
  • Negotiating
  • Primary Health Care
  • Peripheral Arterial Disease
  • Technology
  1 Downloads (Pure)

• Nurses’ and patients’ experiences and preferences of the ankle-brachial pressure index and multi-site photoplethysmography for the diagnosis of peripheral arterial disease: A qualitative study

  Scott, J., Lecouturier, J., Rousseau, N., Stansby, G., Sims, A., Wilson, L. & Allen, J., 7 Nov 2019, In: PLoS ONE. 14, 11, 15 p., e0224546.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Photoplethysmography
  • Ankle Brachial Index
  • Patient Preference
  • Peripheral Arterial Disease
  • Nurses
  2 Downloads (Pure)

• Peripheral arterial disease diagnosis and management in primary care: A qualitative study

  Lecouturier, J., Scott, J., Rousseau, N., Stansby, G., Sims, A. & Allen, J., 21 Aug 2019, In: BJGP Open. 3, 3, 11 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Peripheral Arterial Disease
  • Disease Management
  • Primary Health Care
  • Nurses
  • Attitude to Health
  3 Citations (Scopus)

  1 Downloads (Pure)

• Quantifying the delays between multi-site photoplethysmography pulse and electrocardiogram r-r interval changes under slow-paced breathing

  Allen, J., 25 Sep 2019, In: Frontiers in Physiology. 10, 6 p., 1190.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Photoplethysmography
  • Pulse
  • Respiration
  • Electrocardiography
  • Adenosine Monophosphate
  1 Citation (Scopus)

  1 Downloads (Pure)

• Recent development of respiratory rate measurement technologies

  Liu, H., Allen, J., Zheng, D. & Chen, F., 2 Aug 2019, In: Physiological Measurement. 40, 7, 27 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Respiratory Rate
  • Technology
  • Monitoring
  • Direction compound
  27 Citations (Scopus)

  37 Downloads (Pure)

• Sensor Housing and Associated Disposable Element: Sensor and clip for PPG etc.

  Allen, J., Beale, T. A. W. & Wightman, J. P., 22 Aug 2019, IPC No. A61B5/00, Patent No. US 2019/0254602 A1, 7 Nov 2017, Priority date 7 Nov 2016

  Research output: Patent

  • Surgical Instruments
  • Membranes
  • Nonionizing Radiation
  • Direction compound
  • Equipment and Supplies

• Simple photoplethysmography pulse encoding technique for communicating the detection of peripheral arterial disease - A proof of concept study

  Allen, J. & Hedley, S., 30 Aug 2019, In: Physiological Measurement. 40, 8

  Research output: Contribution to journal › Article › peer-review

  • Photoplethysmography
  • Proof of Concept Study
  • Pulse
  • Peripheral Arterial Disease
  • Acoustic waves
  2 Citations (Scopus)

• Tissue oxygen saturation assessment of microvascular perfusion in adults with Fontan palliation and comparator groups using vascular optical spectrophotometry: A pilot study

  Agarwal, R., Chaudhry, B., Jansen, K., O'Sullivan, J., Hudson, M., Allen, J. & Coats, L., 28 Jun 2019, In: Physiological Measurement. 40, 6, 06NT01.

  Research output: Contribution to journal › Article › peer-review

  • Spectrophotometry
  • Tissue
  • Oxygen
  • Perfusion
  • Liver

• Using a Discrete-Choice Experiment to Estimate the Preferences of Clinical Practitioners for a Novel Non-invasive Device for Diagnosis of Peripheral Arterial Disease in Primary Care

  Oluboyede, Y., Ternent, L., Vale, L. & Allen, J., 16 May 2019, In: PharmacoEconomics - Open. 3, p. 571–581 11 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Peripheral Arterial Disease
  • Primary Health Care
  • Equipment and Supplies
  • Electric Power Supplies
  • Data Display
  1 Citation (Scopus)

  1 Downloads (Pure)
• 2018

  A Multicenter Study of the Validity and Reliability of Responses to Hand Cold Challenge as Measured by Laser Speckle Contrast Imaging and Thermography: Outcome Measures for Systemic Sclerosis Related Raynaud's Phenomenon

  Wilkinson, J. D., Leggett, S. A., Marjanovic, E. J., Moore, T. L., Allen, J., Anderson, M. E., Britton, J., Buch, M. H., Del Galdo, F., Denton, C. P., Dinsdale, G., Griffiths, B., Hall, F., Howell, K., MacDonald, A., McHugh, N. J., Manning, J. B., Pauling, J. D., Roberts, C., Shipley, J. A. & 2 others, Herrick, A. L. & Murray, A. K., Jun 2018, In: Arthritis and Rheumatology. 70, 6, p. 903-911 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Thermography
  • Raynaud Disease
  • Systemic Scleroderma
  • Reproducibility of Results
  • Cold Temperature
  29 Citations (Scopus)

• Innovative Multi-Site Photoplethysmography Analysis for Quantifying Pulse Amplitude and Timing Variability Characteristics in Peripheral Arterial Disease

  Bentham, M., Stansby, G. & Allen, J., 17 Sep 2018, In: Diseases. 6, 3, 14 p., 81.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Photoplethysmography
  • Peripheral Arterial Disease
  • Pulse
  • Toes
  • Blood Vessels
  2 Downloads (Pure)

• Innovative multi-site photoplethysmography measurement and analysis demonstrating increased arterial stiffness in paediatric heart transplant recipients

  Sharkey, E. J., Di Maria, C., Klinge, A., Murray, A., Zheng, D., O'Sullivan, J. & Allen, J., 1 Aug 2018, In: Physiological Measurement. 39, 7, 074007.

  Research output: Contribution to journal › Article › peer-review

  • Photoplethysmography
  • Transplants
  • Pediatrics
  • Vascular Stiffness
  • Transplant Recipients
  3 Citations (Scopus)

• Novel optical assessments of tissue composition and viability using fluorescence spectroscopy and tissue oxygenation spectrophotometry in patients with systemic sclerosis: A pilot study

  Allen, J., Di Maria, C., Urwin, S. G., Murray, A., Ottewell, L. & Griffiths, B., 2 Apr 2018, In: Physiological Measurement. 39, 3, 03NT02.

  Research output: Contribution to journal › Article › peer-review

  • Fluorescence spectroscopy
  • Spectrophotometry
  • Oxygenation
  • Tissue Survival
  • Fluorescence Spectrometry
  3 Citations (Scopus)

• Novel Signal Noise Reduction Method through Cluster Analysis, Applied to Photoplethysmography

  Waugh, W., Allen, J., Wightman, J., Sims, A. J. & Beale, T. A. W., 29 Jan 2018, In: Computational and Mathematical Methods in Medicine. 2018, 8 p., 6812404.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Noise Reduction
  • Photoplethysmography
  • Cluster Analysis
  • Cluster analysis
  • Reduction Method
  4 Citations (Scopus)

  6 Downloads (Pure)

• Reliability of a novel thermal imaging system for temperature assessment of healthy feet

  Petrova, N. L., Whittam, A., MacDonald, A., Ainarkar, S., Donaldson, A. N., Bevans, J., Allen, J., Plassmann, P., Kluwe, B., Ring, F., Rogers, L., Simpson, R., Machin, G. & Edmonds, M. E., 30 May 2018, In: Journal of Foot and Ankle Research. 11, 6 p., 22.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Thermometers
  • Foot
  • Hot Temperature
  • Temperature
  • Equipment and Supplies
  15 Citations (Scopus)

  3 Downloads (Pure)

• Systematic Review of Economic Models Used to Compare Techniques for Detecting Peripheral Arterial Disease

  Moloney, E., O’Connor, J., Craig, D., Robalino, S., Chrysos, A., Javanbakht, M., Sims, A., Stansby, G., Wilkes, S. & Allen, J., 23 Apr 2018, In: PharmacoEconomics - Open. 3, p. 21–30 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • econometric models
  • systematic review
  • economic evaluation
  • diagnostic techniques
  • methodology

• The assessment of nailfold capillaries: Comparison of dermoscopy and nailfold videocapillaroscopy

  Dinsdale, G., Peytrignet, S., Moore, T., Berks, M., Roberts, C., Manning, J., Allen, J., Anderson, M., Cutolo, M., Hesselstrand, R., Howell, K., Pizzorni, C., Smith, V., Sulli, A., Wildt, M., Taylor, C., Murray, A. & Herrick, A. L., Jun 2018, In: Rheumatology. 57, 6, p. 1115–1116 2 p.

  Research output: Contribution to journal › Letter › peer-review
  7 Citations (Scopus)
• 2017

  A medical thermal imaging device for the prevention of diabetic foot ulceration

  Machin, G., Whittam, A., Ainarkar, S., Allen, J., Bevans, J., Edmonds, M., Kluwe, B., Macdonald, A., Petrova, N., Plassmann, P., Ring, F., Rogers, L. & Simpson, R., 3 Feb 2017, In: Physiological Measurement. 38, 3, p. 420-430 11 p.

  Research output: Contribution to journal › Article › peer-review

  • Diabetic Foot
  • Infrared imaging
  • Medical imaging
  • Diagnostic Imaging
  • Hot Temperature
  11 Citations (Scopus)

• Development of a clinical thermal imaging and vascular optics measurement facility – the Newcastle upon Tyne experience

  Allen, J., 2017, Innovative Research in Thermal Imaging for Biology and Medicine. Vardasca, R. & Mendes, J. G. (eds.). IGI Global, p. 1-33 33 p.

  Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

  • Diagnostic Services
  • Hot Temperature
  • Blood Vessels
  • Perfusion
  • Microscopic Angioscopy

• Exploratory Thermal Imaging Assessments of the Feet in Patients with Lower Limb Peripheral Arterial Disease

  Kyle, D., Allen, J., Overbeck, K. & Stansby, G., 2017, Application of Infrared to Biomedical Sciences. Ng, E. YK. & Etehadtavakol, M. (eds.). 1 ed. Springer, Singapore, p. 249-263 15 p. ( Series in BioEngineering ).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

  • limbs (animal)
  • image analysis
  • heat
  • foot diseases
  • legs

• Intra-and inter-observer reliability of nailfold videocapillaroscopy — A possible outcome measure for systemic sclerosis-related microangiopathy

  Dinsdale, G., Moore, T., O'Leary, N., Tresadern, P., Berks, M., Roberts, C., Manning, J., Allen, J., Anderson, M. E., Cutolo, M., Hesselstrand, R., Howell, K., Pizzorni, C., Smith, V., Sulli, A., Wildt, M., Taylor, C., Murray, A. & Herrick, A. L., Jul 2017, In: Microvascular Research. 112, p. 1-6 6 p.

  Research output: Contribution to journal › Article › peer-review

  • Microscopic Angioscopy
  • Systemic Scleroderma
  • Outcome Assessment (Health Care)
  • Raynaud Disease
  • Longitudinal Studies
  14 Citations (Scopus)

• Intraoperative Thermal and Laser Speckle Contrast Imaging Assessment of Bowel Perfusion in Two Cases of Colorectal Resection Surgery

  Di Maria, C., Hainsworth, P. J. & Allen, J., 2017, Application of Infrared to Biomedical Sciences. Ng, E. YK. & Etehadtavakol, M. (eds.). 1 ed. Springer, Singapore, p. 437-449 13 p. ( Series in BioEngineering).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

  • Colorectal Surgery
  • Lasers
  • Hot Temperature
  • Perfusion
  • Technology

• Quantitative outcome measures for systemic sclerosis-related Microangiopathy – Reliability of image acquisition in Nailfold Capillaroscopy

  Dinsdale, G., Moore, T., O'Leary, N., Berks, M., Roberts, C., Manning, J., Allen, J., Anderson, M. E., Cutolo, M., Hesselstrand, R., Howell, K., Pizzorni, C., Smith, V., Sulli, A., Wildt, M., Taylor, C., Murray, A. & Herrick, A. L., Sep 2017, In: Microvascular Research. 113, p. 56-59 4 p.

  Research output: Contribution to journal › Article › peer-review

  • Microscopic Angioscopy
  • Image acquisition
  • Systemic Scleroderma
  • Outcome Assessment (Health Care)
  • Imaging techniques
  9 Citations (Scopus)

• Reproducibility of thermal images: some healthy examples

  Macdonald, A., Petrova, N., Ainarkar, S., Allen, J., Plassmann, P., Whittam, A., Bevans, J., Bevans, J., Kluwe, B., Simpson, R., Rogers, L., Machin, G. & Edmonds, M., 2017, Application of Infrared to Biomedical Science . Ng, E. Y. K. & Etehadtavakol, M. (eds.). 1 ed. Springer, Singapore, p. 265-276 12 p. ( Series in BioEngineering ).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

  • Foot
  • Hot Temperature
  • Temperature
  • Healthy Volunteers
  • Inflammation

• Towards a consensus on the understanding and analysis of the pulse waveform: Results from the 2016 Workshop on Arterial Hemodynamics: Past, present and future

  Segers, P., O'Rourke, M. F., Parker, K., Westerhof, N., Hughes, A., Participants of the 2016 Workshop on Arterial Hemodynamics: Past, present and future & Allen, J., 2017, In: Artery Research. 18, C, p. 75-80

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Consensus
  • Hemodynamics
  • Education
  • Dissent and Disputes
  20 Citations (Scopus)
• 2016

  Quantification of differences between nailfold capillaroscopy images with a scleroderma pattern and normal pattern using measures of geometric and algorithmic complexity

  Urwin, S. G., Griffiths, B. & Allen, J., 23 Dec 2016, In: Physiological Measurement. 38, 2

  Research output: Contribution to journal › Article › peer-review

  • Microscopic Angioscopy
  • Fractals
  • Fractal dimension
  • Cluster analysis
  • Cluster Analysis
  3 Citations (Scopus)

• Thermal symmetry of healthy feet: A precursor to a thermal study of diabetic feet prior to skin breakdown

  Macdonald, A., Petrova, N., Ainarkar, S., Allen, J., Plassmann, P., Whittam, A., Bevans, J., Ring, F., Kluwe, B., Simpson, R., Rogers, L., Machin, G. & Edmonds, M., 12 Dec 2016, In: Physiological Measurement. 38, 33.

  Research output: Contribution to journal › Article › peer-review

  • Diabetic Foot
  • Skin
  • Foot
  • Hot Temperature
  • Inflammation
  27 Citations (Scopus)