Alistair McEwan

Senior Lecturer

The University of Sydney

City
The University Of Sydney, Australia
Discipline
Electrical and Electronic Engineering
Interests
Dr Alistair McEwan (IEEE M’98-SM’09) is Senior Lecturer of Computer Engineering at The University of Sydney, Australia. He received his B.E., B.Com and MPhil degrees in Economics and in Electrical Engineering in 1999 and 2001 respectively from The Univers
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About

Dr Alistair McEwan (IEEE M’98-SM’09) is Lecturer of Computer Engineering at The University of Sydney, Australia. He received his B.E.,B.Com and MPhil degrees in Economics and in Electrical Engineering in 1999 and 2001 respectively from The University of Sydney, Australia and his DPhil from Oxford University, UK in 2005. He did postdoctoral research at University College London, UK and then at Philips Research Labs in Germany as a Marie Curie Research Fellow. He most recently developed a portable imaging device based on Electrical Impedance Tomography Spectroscopy (EITS). The resulting system is currently being used in clinical trials of stroke and epilepsy monitoring in three London hospitals. He is currently working on a patented code division multiplexing (CDM) EITS method for simultaneous measurements with increased acquisition speed, number of electrodes and frequencies, leading to improved images and a wider range of applications. His research interests include medical instrumentation, integrated circuit design, and bio-inspired systems. He has more than 50 papers in these research areas and is an inventor on several patents. Dr McEwan is a member of the IEEE BioCAS Technical Committee of the CAS Society.
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Publications

  • Electrode contact impedance sensitivity to variations in geometry

    Cardu R, Leong P, Jin C, McEwan A

    Physiological Measurement (2012)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Comparison of frequency difference reconstruction algorithms for the detection of acute stroke using EIT in a realistic head-shaped tank

    Packham B, Koo H, Romsauerova A, Ahn S, McEwan A, Jun S et al.

    Physiological Measurement (2012)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A programmable axonal propagation delay circuit for time-delay spiking neural networks

    Wang R, Jin C, Mcewan A, Schaik A

    IEEE International Symposium on Circuits and Systems (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Feasibility of using internal electrodes to improve the accuracy Cardiac Electrical impedance Tomography

    Tehrani J, Thiagalingam A, Jin C, Schaik A, Chik W, Barry M et al.

    International Conference on EIT (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Advanced Biomedical Engineering | InTechOpen

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Applied Biomedical Engineering | InTechOpen

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • FPGA implementation of biologically-inspired auto-associative memory

    Ang C, McEwan A, van Schaik A, Jin C, Leong P

    Electronics Letters (2012)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Detection of temporal lobe seizures and identification of lateralisation from audified EEG.

    Khamis H, Mohamed A, Simpson S, McEwan A

    Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology (2012)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Modelling of an Oesophageal Electrode for Cardiac Function Tomography

    Computational and Mathematical Methods in Medicine (2012)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Giga-ohm high impedance FET input amplifiers for dry electrode biosensor circuits and systems

    Gargiulo G, Bifulco P, Calvo R, Romano M, Ruffo M, Shephard R et al.

    Integrated Microsystems Electronics Photonics and Biotechnology (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Edge enhancement for retinal vasculature caliber evaluation in prediction of cardiovascular disease

    Tehrani J, Wang C, Jin C, McEwan A, Gibbs O, Shanehsaz E et al.

    2011 4th International Conference on Biomedical Engineering and Informatics (BMEI) (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Assessment of alterations in the electrical impedance of muscle after experimental nerve injury via finite-element analysis.

    Wang L, Ahad M, McEwan A, Li J, Jafarpoor M, Rutkove S

    IEEE transactions on bio-medical engineering (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Upscaling Ambisonic sound scenes using compressed sensing techniques

    Wabnitz A, Epain N, McEwan A, Jin C

    2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Non Invasive Foetal Monitoring with a Combined ECG - PCG System

    Ruffo M, C. M

    Biomedical Engineering, Trends in Electronics, Communications and Software (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany

    McEwan A, Hamsch M, Watson S, Igney C, Kahlert J

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A comparison between new L1 minimization algorithms in Electrical Impedance Tomography using the Pareto Curve

    Tehrani J, McEwan A

    2010 17th Iranian Conference of Biomedical Engineering (ICBME) (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Non invasive foetal monitoring with combined ECG - PCG system

    Ruffo M, Cesarelli M, Jin C, Gargiulo G, McEwan A, Sullivan C et al.

    Biomedical Engineering (2011)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Wearable dry sensors with Bluetooth connection for use in remote patient monitoring systems

    Gargiulo G, Bifulco P, Cesarelli M, Jin C, McEwan A, Van Schaik A

    Global Telehealth Conference (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Fixation using multiple cushions of two different types for the acquisition of high quality imaging data

    Eichardt R, McEwan A, Hamsch M

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • An Analogue VLSI Implementation of the Meddis Inner Hair Cell Model Using Log-Domain Filters

    McEwan A

    Analysis (1999)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A new architecture for Direct Digital Frequency Synthesis.

    McEwan A

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A Silicon Representation of the Meddis Inner Hair Cell Model

    McEwan A, Van Schaik A

    ICSC Symposia on Intelligent Systems and Application (2000)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Wide-bandwidth, high frame rate electrical impedance tomography / spectroscopy - A Code Division Multiplexing (CDM) approach

    McEwan A, Holder D, Tapson J, Van Schaik A

    International Conference on Biomedical Electronics and Devices (2008)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Code division multiplexed electrical impedance tomography spectroscopy

    McEwan A, Tapson J, Van Schaik A, Holder D

    IEEE Transactions on Biomedical Circuits and Systems (2009)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Suitability of the INPHAZE impedance analyzer for Bio-impedance and EIT

    Sugashine J, Schaik A, Jin C, McEwan A

    Journal of Physics Conference Series (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Spread Spectrum EIT by Code Division Multiplexing

    McEwan A, Tapson J, Van Schaik A, Holder D

    Journal of Physics Conference Series (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Feasibility of electrical impedance tomography in haemorrhagic stroke treatment using adaptive mesh

    Tehrani J, Anderson C, Jin C, Van Schaik A, Holder D, McEwan A

    Journal of Physics Conference Series (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Dry Electrode Bio-Potential Recordings

    Gargiulo G, Bifulco P, McEwan A, Tehrani J, Calvo R, Romano M et al.

    32nd Annual International IEEE EMBS Conference (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A log-domain implementation of the Mihalas-Niebur neuron model

    Van Schaik A, Jin C, McEwan A, Hamilton T, Mihalaş S, Niebur E

    IEEE International Symposium on Circuits and Systems (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A log-domain implementation of the Izhikevich neuron model

    Van Schaik A, Jin C, McEwan A, Hamilton T

    IEEE International Symposium on Circuits and Systems (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A Comparison between Compressed Sensing Algorithms in Electrical Impedance Tomography

    Tehrani J, Jin C, McEwan A, Van Schaik A

    32nd Annual International IEEE EMBS Conference (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Non-invasive electronic biosensor circuits and systems

    Garguilo G, Bifulco P, Calvo R, Cesarelli M, Jin C, McEwan A et al.

    Chapter in book Intelligent and Biosensor published by InTech (2010)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • System and Method for Conducting Multiplexed Electrical Impedance Tomography

    McEwan A, Holder D, Van Schaik A, Tapson J

    Patent WO2009068961 (2009)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Magnetic induction tomography systems with coil configuration

    Eichardt R, McEwan A

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Stroke type differentiation by multi – frequency electrical impedance tomography – a feasibility study

    Horesh L, Gilad O, Romsauerova A, McEwan A, Arridge S, Holder D

    11 ed 3rd European Medical and Biological Engineering Conference (2005)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Optimization of the pattern of applied frequencies for Multifrequency EIT (MFEIT) of the head in order to minimise scalp skin stimulation

    Romsauerova A, McEwan A, Holder D

    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006 (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A Direct Digital Frequency Synthesis System for Low Power Communications

    McEwan A, Shah S, Collins S

    IEEE European Conference on Circuits and Systems (2003)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • An alternative analog VLSI implementation of the Meddis inner hair cell model

    McEwan A, van Schaik A

    IEEE International Symposium on Circuits and Systems (2004)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Evaluation of the performance of the Multifrequency Electrical Impedance Tomography (MFEIT) intended for imaging acute stroke

    Romsauerova A, McEwan A, Fabrizi L, Holder D

    13TH INTERNATIONAL CONFERENCE ON ELECTRICAL BIOIMPEDANCE AND THE 8TH CONFERENCE ON ELECTRICAL IMPEDANCE TOMOGRAPHY (2007)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Calibration and preliminary human measurements for multifrequency EIT of the human head.

    Romsauerova A, Yerworth R, McEwan A, Horesh L, Abascal J, Holder D

    VI International Conference on Biomedical Applications of Electrical Impedance Tomography (2005)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • The Application of Current-Mode Translinear circuits to Neural Systems.

    McEwan A

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Selection of an optimal electrode protocol for imaging of brain function with the KHU Mk1 16 channel EIT system using computer simulation

    Fabrizi L, Woo E, Holder D, McEwan A

    Proceedings of IX Electrical Impedance Tomography Conference, Dartmouth USA, 2008 (2008)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Wide-Bandwidth, High Frame Rate Electrical Impedance Tomography / Spectroscopy: A Code Division Multiplexing (CDM) Approach

    McEwan A, Tapson J, van Schaik A, Holder D

    BIODEVICES (2008)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A comparison of Multi-Frequency EIT systems intended for acute stroke imaging

    Romsauerova A, McEwan A, Horesh L, Oh T, Woo E, Holder D

    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006 (2007)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • An efficient CMOS DDFS architecture suitable for Bluetooth

    McEwan A, Collins S

    IEE Biennial Analog Signal Processing Conference Proceedings (2002)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Electrode Circuits for Frequency- and Code-Division Multiplexed Impedance Tomography

    McEwan A, Tapson J, van Schaik A, Holder D

    IEEE Conference on Biomedical Circuits and Systems (2007)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Performance improvements in a MF–EIT system for acute stroke: The UCL Mk2.5

    McEwan A, Romsauerova A, Horesh L, Holder D

    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006 (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A compact direct digital frequency synthesis architecture

    McEwan A, Collins S

    IEEE International Symposium on Circuits and Systems (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Wireless EIT

    McEwan A, Yerworth R, Bayford R, Brown B, Milnes P, Holder D

    International Conference on Electrical Bioimpedance (2004)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A low power high speed accumulator for DDFS applications

    Chappell M, McEwan A

    IEEE International Symposium on Circuits and Systems (2004)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Analogue interpolation based direct digital frequency synthesis

    McEwan A, Collins S

    IEEE International Symposium on Circuits and Systems (2003)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Battery powered and wireless Electrical Impedance Tomography Spectroscopy Imaging using Bluetooth

    McEwan A, Holder D

    Medicon 2007 (2007)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Instrumentation improvements in battery powered, wireless EITS

    McEwan A, Holder D

    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2006 (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A Silicon Implementation of the Meddis Inner Hair Cell

    McEwan A, van Schiak A

    Proceedings of International Computer Science Conventions (2000)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Comparison of two EIT systems suitable for imaging impedance changes in epilepsy

    Fabrizi L, Oh D, Woo E, Holder D, McEwan A

    Proceedings of IX Electrical Impedance Tomography Conference (2008)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Specification and calibration of a Multifrequency EIT system for stroke.

    McEwan A, Yerworth R, Horesh L, Bayford R, Holder D

    VI International Conference on Biomedical Applications of Electrical Impedance Tomography, (University College London, 22-24th June) (2005)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A comparison of two phase measurement techniques for Magnetic Impedance Tomography

    McEwan A, Hamsch M, Watson S, Igney C, Kahlert J

    WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2009 (2009)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Factors limiting the application of electrical impedance tomography for identification of regional conductivity changes using scalp electrodes during epileptic seizures in humans

    Fabrizi L, Sparkes M, Horesh L, Perez-Juste Abascal J, McEwan A, Bayford R et al.

    Physiol Meas (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Efficient, ROM-less DDFS using non-linear interpolation and non-linear DAC

    McEwan A, Collins S

    Analog Integrated Circuits and Signal Processing (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • An electrode addressing protocol for imaging brain function with electrical impedance tomography using a 16-channel semi-parallel system

    Fabrizi L, McEwan A, Oh T, Woo E, Holder D

    Physiol Meas (2009)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A comparison of two EIT systems suitable for imaging impedance changes in epilepsy

    Fabrizi L, McEwan A, Oh T, Woo E, Holder D

    Physiol Meas (2009)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • An analogue VLSI implementation of the Meddis inner hair cell model

    McEwan A, van Schaik A

    EURASIP J. Appl. Signal Process. (2003)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Estimation of signal size for imaging of epileptic seizures by electrical impedance tomography (EIT)

    Fabrizi L, Horesh L, McEwan A, Holder D

    Clinical Neurophysiology (2007)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • A review of errors in multi-frequency EIT instrumentation

    McEwan A, Cusick G, Holder D

    Physiol Meas (2007)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Design and calibration of a compact multi-frequency EIT system for acute stroke imaging

    McEwan A, Romsauerova A, Yerworth R, Horesh L, Bayford R, Holder D

    Physiol Meas (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Multi-frequency electrical impedance tomography (EIT) of the adult human head: initial findings in brain tumours, arteriovenous malformations and chronic stroke, development of an analysis method and calibration

    Romsauerova A, McEwan A, Horesh L, Yerworth R, Bayford R, Holder D

    Physiol Meas (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Direct Digital-Frequency Synthesis by Analog Interpolation

    McEwan A, Collins S

    Circuits and Systems II: Express Briefs, IEEE Transactions on (2006)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.
  • Analysis of resting noise characteristics of three EIT systems in order to compare suitability for time difference imaging with scalp electrodes during epileptic seizures

    Fabrizi L, McEwan A, Woo E, Holder D

    Physiol Meas (2007)

    • -- Readers Readers not available. This publication is not currently accessible in the Mendeley catalog.

Professional experience

Senior Lecturer

The University of Sydney

February 2009 - Present

Research Scientist

Philips Research

Present

Education history

The University of Oxford

DPhil Engineering Science

Present