A
Alistair McEwan
Researcher at University of Sydney
Publications - 199
Citations - 2827
Alistair McEwan is an academic researcher from University of Sydney. The author has contributed to research in topics: Electrical impedance tomography & Electrical impedance. The author has an hindex of 25, co-authored 192 publications receiving 2330 citations. Previous affiliations of Alistair McEwan include Royal Prince Alfred Hospital & University of Oxford.
Papers
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Journal ArticleDOI
True Unipolar ECG Leads Recording (Without the Use of WCT)
Gaetano D. Gargiulo,Gaetano D. Gargiulo,Aravinda Thiagalingam,Alistair McEwan,Mario Cesarelli,Paolo Bifulco,Jonathan Tapson,A. van Schaik +7 more
Journal ArticleDOI
Fully Open-Access Passive Dry Electrodes BIOADC: Open-Electroencephalography (EEG) Re-Invented.
Gaetano D. Gargiulo,Paolo Bifulco,Mario Cesarelli,Alistair McEwan,Armin Nikpour,Craig Jin,Upul Gunawardana,Neethu Sreenivasan,Andrew Wabnitz,Tara Julia Hamilton +9 more
TL;DR: This paper presents a fully configurable platform with up to 32 EEG channels and compatibility with virtually any kind of passive electrodes including textile, rubber and contactless electrodes, and describes the necessary modification to the presented hardware to enable this function.
Journal ArticleDOI
Optimizing Impedance Change Measurement During Radiofrequency Ablation Enables More Accurate Characterization of Lesion Formation
Pierre Qian,Pierre Qian,Duc Minh Nguyen,Michael A. Barry,Vu Toan Tran,Juntang Lu,Aravinda Thiagalingam,Stuart P. Thomas,Alistair McEwan +8 more
TL;DR: By optimizing the current path and using 4-terminal impedance measurement during RF ablation, the contribution of tissue temperature changes to measured impedance is better standardized to provide a more reliable measure than conventional ablation circuit impedance.
Journal ArticleDOI
Self-weighted NOSER-prior electrical impedance tomography using internal electrodes in cardiac radiofrequency ablation.
TL;DR: A time-efficient algorithm with self-weighted NOSER-prior and a measurement filtering process for optimizing the number of measurement were proposed for monitoring the lesion size during the cardiac RF ablation, taking advantage of internal catheter-based electrodes and the prior information of anatomical structure and the catheter location, which are usually available during the ablation course.
Book ChapterDOI
Evaluation of the performance of the Multifrequency Electrical Impedance Tomography (MFEIT) intended for imaging acute stroke
TL;DR: Both reconstructed images and derived impedance spectra in tanks with the uniform background of 0.1% NaCl saline corresponded closely to direct impedance measurements, and the UCLH Mk2.5 worked well.