R. Summers

ORCID: 0000-0003-4806-4292
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About
Contact & Profiles
Research Areas
  • Healthcare Technology and Patient Monitoring
  • Biomedical Text Mining and Ontologies
  • Electronic Health Records Systems
  • Biomedical and Engineering Education
  • Congenital heart defects research
  • Bayesian Modeling and Causal Inference
  • Hemodynamic Monitoring and Therapy
  • Non-Invasive Vital Sign Monitoring
  • Semantic Web and Ontologies
  • Machine Learning in Healthcare
  • Scientific Computing and Data Management
  • Elasticity and Material Modeling
  • Healthcare Operations and Scheduling Optimization
  • Optical Imaging and Spectroscopy Techniques
  • Context-Aware Activity Recognition Systems
  • AI-based Problem Solving and Planning
  • Big Data and Business Intelligence
  • Cardiomyopathy and Myosin Studies
  • Business Process Modeling and Analysis
  • Cardiovascular Function and Risk Factors
  • Cellular Mechanics and Interactions
  • AI in cancer detection
  • Tissue Engineering and Regenerative Medicine
  • Genomics and Rare Diseases
  • Mobile Health and mHealth Applications

National Institutes of Health Clinical Center
2007-2025

Laboratoire d’Imagerie Biomédicale
2022

Cell and Tissue Systems (United States)
2022

Basilea Pharmaceutica (Switzerland)
2022

Loughborough University
2007-2016

City, University of London
1988-2005

University of Zagreb
2003

Northampton Community College
1994

University North
1988

University of Iowa
1986

Abstract The purpose of this study was to evaluate the utility lumbar spine attenuation measurement for bone mineral density (BMD) assessment at screening computed tomographic colonography (CTC) using central dual-energy X-ray absorptiometry (DXA) as reference standard. Two-hundred and fifty-two adults (240 women 12 men; mean age 58.9 years) underwent CTC DXA BMD within 2 months (mean interval 25.0 days). lowest T-score between hip served standard, with low defined per World Health...

10.1002/jbmr.428 article EN Journal of Bone and Mineral Research 2011-05-16

Contact and spot measurement have limited the application of photoplethysmography (PPG), thus an imaging PPG system comprising a digital CMOS camera three wavelength light-emitting diodes (LEDs) is developed to detect blood perfusion in tissue. With means system, ideally contactless monitoring with larger field view different depth tissue by applying multi- illumination can be achieved understand change. Corresponding individual LED illumination, signals derived both transmission reflection...

10.1109/bmei.2008.365 article EN 2008-05-01

Abstract Accurate, reproducible body composition analysis from abdominal computed tomography (CT) images is critical for both clinical research and patient care. We present a fully automated, artificial intelligence (AI)-based pipeline that streamlines the entire process—from data normalization anatomical landmarking to automated tissue segmentation quantitative biomarker extraction. Our methodology ensures standardized inputs robust models compute volumetric, density, cross-sectional area...

10.1007/s00261-025-04951-7 article EN cc-by Abdominal Radiology 2025-04-28

This paper presents a camera-based imaging photoplethysmographic (PPG) system in the remote detection of PPG signals, which can contribute to construct 3-D blood pulsation mapping for assessment skin microcirculation at various vascular depths. Spot measurement and contact sensor have been currently addressed as primary limitations utilization conventional system. The introduction fast digital camera inspires development allow ideally non-contact monitoring from larger field view different...

10.1117/12.761705 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2008-02-01

Clinicians at Nottingham University Hospitals NHS Trust have developed a clinical information model that enables detailed patient data to be gathered in clinics, stored record, linked with samples Biobank and then used identify select cohorts for research studies. The objective has been enable the assembly of based on any plausible combination laboratory features. is represented as an ontology, coded OWL/XML itself built upon ontology-based architecture. can generate runtime configuration...

10.1109/cbms.2011.5999165 article EN 2011-06-01

This article presents issues relating to the future direction of information science discipline. A 10-year time horizon is chosen so that predictions will not be influenced unduly by change in environment. To know where discipline going relies on knowledge it has been; this trajectory investigated terms its historical development. The scientific basis addressed, together with an all encompassing definition for term "information." Moving from theory into practice raises further issues, and...

10.1002/(sici)1097-4571(1999)50:12<1153::aid-asi20>3.0.co;2-h article EN Journal of the American Society for Information Science 1999-01-01

To examine the characteristics of computerized decision support systems (CDSS) currently available to nurses working in National Health Service (NHS) England.A questionnaire survey sent a stratified random sample 50% all NHS care providers (Trusts) England, asking respondents provide information on CDSS used by nurses.Responses were received from 108 277 Trusts included sample. Electronic patient record most common type reported (n = 61) but they least likely have features that been...

10.1111/j.1365-2834.2009.00986.x article EN Journal of Nursing Management 2009-04-02

A persistent issue in deep learning (DL) is the inability of models to function a domain which they were not trained. For example, model trained segment an organ MRI scans often dramatically fails when tested computed tomography (CT) scans. Since manual segmentation extremely timeconsuming, it feasible acquire annotated dataset target domain. Domain adaptation allows transfer knowledge about labelled source into In this work, we attempt address differences performance segmenting from...

10.1117/12.2551093 article EN Medical Imaging 2018: Computer-Aided Diagnosis 2020-03-16

The rapid accurate diagnosis of critical disorders is an essential component intensive care. Traditional diagnostic techniques have relied on physician experience, which based a data set chosen from his or her personal preferences, rather than scientific merit. In this article, we show that there are alternative methods selecting clinical variables to base diagnosis. We suggest model-based technique utilizing artificial neural networks (ANNs) can be used investigate alternative, objectively...

10.1109/51.637116 article EN IEEE Engineering in Medicine and Biology Magazine 1997-11-01

Non-contact imaging photoplethysmography (PPG) is a recent development in the field of physiological data acquisition, currently undergoing large amount research to characterize and define range its capabilities. Contact-based PPG techniques have been broadly used clinical scenarios for number years obtain direct information about degree oxygen saturation patients. With advent techniques, there strong potential enable access additional such as multi-dimensional blood perfusion mapping. The...

10.1117/12.2044318 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2014-03-04

Mobile healthcare provision in the home environment presents many challenges. Patients are becoming more informed about management of chronic conditions and use technology to support process is rising. Issues such as system interoperability, cost, security training all have be addressed ensure effective mobile devices within arena. An aging population will impact upon traditional delivery methods.

10.1109/iembs.2006.260722 article EN International Conference of the IEEE Engineering in Medicine and Biology Society 2006-08-01

A fiber optic thermometer based on the lifetime of Cr:LiSAF fluorescence, induced by visible light, is reported for applications in monitoring temperature during clinical heat treatment Benign Prostatic Hyperplasia. As source such stems from an externally applied radio frequency (rf) field (434 MHz), unlike current technology which uses thermocouples as sensing element, use a thermometer, immune to rf interference, allows continuous and hence further enhances patient safety. In addition,...

10.1117/12.144719 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 1993-05-18

Demonstrates how the cause of ventricular contraction (VC), reflected by its electrophysiological precursors (ECG), and related effect on haemodynamic system [characterized systemic arterial pressure (SAP), sometimes called mean systolic (MSAP)] can be fused together for a rhythm (VR) tracking purpose. Data fusion heterogeneous signals, such as ECG SAP, appears to an interesting alternative overcome relative drawbacks signal processing univariate channels. Behind clinical aim providing more...

10.1109/51.637117 article EN IEEE Engineering in Medicine and Biology Magazine 1997-11-01

The authors discuss the problems associated with introducing an intelligent measurement and information system into a clinical high-dependency environment (HDE), typified by intensive care unit (ICU) postoperative recovery room. One specific situation in which instrumentation is required during mechanical ventilation. A novel methodology that provides structure for incorporation of knowledge-based component process has been proposed. This covers entire development process, from particular to...

10.1109/51.248167 article EN IEEE Engineering in Medicine and Biology Magazine 1993-12-01

Quantities related to the amount of trabecular bone in distal radius and cortical mid-shaft have been measured 262 normal adults both sexes aged 21-89 years by computed tomography (CT). A special-purpose CT system (ISOTOM) which incorporated a source 125I (29 keV) was used make measurements. The relationships between these quantities age, weight, height surface area evaluated, results draw conclusions on significance values female patients with osteoporosis, Colles' fracture wrist...

10.1088/0143-0815/6/4/002 article EN Clinical Physics and Physiological Measurement 1985-11-01

In a progressive care system, patients are transferred between different healthcare units within facility, depending on the stages in patients’ care. Although system allows for improved delivery of treatment and monitoring through division specialization labour other resources, it is also very problematic to manage effectively with high levels interdependence unpredictable demand that placed resources. The solution proposed this paper scheduling admissions development model which may be used...

10.1177/014233120002200305 article EN Transactions of the Institute of Measurement and Control 2000-08-01

CT colonography (CTC) is an emerging noninvasive technique for screening and diagnosing colon cancers. Computer aided detection (CAD) techniques can increase sensitivity reduce false positives. We propose to employ topographical height maps in our CAD pipeline. For every detection, a map computed using ray-casting algorithm. Since colonic polyps are protrusions outward from the wall round contour, their present concentric patterns. The projection direction optimized through multi-scale...

10.1109/icip.2007.4379754 article EN 2007-01-01
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