Louiza Sophocleous

ORCID: 0000-0003-4081-0967
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About
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Research Areas
  • Electrical and Bioimpedance Tomography
  • Geophysical and Geoelectrical Methods
  • Non-Invasive Vital Sign Monitoring
  • Flow Measurement and Analysis
  • Hemodynamic Monitoring and Therapy
  • Neonatal Respiratory Health Research
  • Microfluidic and Bio-sensing Technologies
  • Respiratory Support and Mechanisms

University of Cyprus
2018-2023

Critically ill neonates and infants might particularly benefit from continuous chest electrical impedance tomography (EIT) monitoring at the bedside. In this study a textile 32-electrode interface for neonatal EIT examination has been developed tested to validate its clinical performance. The objectives were assess ease of use in setting, stability contact electrode-skin possible adverse effects.Thirty preterm (gestational age: 30.3 ± 3.9 week (mean SD), postnatal 13.8 28.2 d, body weight...

10.1088/1361-6579/aab513 article EN Physiological Measurement 2018-03-08

This paper defines a method for optimizing the breath delineation algorithms used in electrical impedance tomography (EIT). In lung EIT identification of phases is central generating tidal variation images, subsequent data analysis and clinical evaluation. The optimisation these particularly important neonatal care since existing detectors developed adults may give insufficient reliability neonates due to their very irregular breathing pattern.Our approach generic sense that it relies on...

10.1088/1361-6579/aad7e6 article EN Physiological Measurement 2018-08-03

Rationale: Electrical impedance tomography (EIT) allows instantaneous and continuous visualization of regional ventilation changes in end-expiratory lung volume at the bedside. There is particular interest using EIT for monitoring critically ill neonates young children with respiratory failure. Previous studies have focused only on short-term small populations. The feasibility safety prolonged not been demonstrated yet. Objectives: To evaluate long-term a routine clinical setting to describe...

10.1513/annalsats.202005-562oc article EN Annals of the American Thoracic Society 2021-12-13

Objective: Non-adhesive textile electrode belts offer several advantages over adhesive electrodes and are increasingly used in neonatal patients during continuous electrical impedance tomography (EIT) lung monitoring.However, non-adhesive may rotate unsedated discrepancies between chest circumference belt sizes result a gap near the sternum.This project aimed to determine effects of rotation sternal on commonly EIT parameters.Approach: We developed simulation framework based...

10.1088/1361-6579/ab7b42 article EN Physiological Measurement 2020-02-28

This paper presents a new method for selecting patient specific forward model to compensate anatomical variations in electrical impedance tomography (EIT) monitoring of neonates. The uses combination shape sensors and absolute reconstruction. It takes advantage probabilistic approach which automatically selects the best estimated fit from pre-stored library models. Absolute/static image reconstruction is performed as core posterior probability calculations. validity reliability algorithm...

10.1109/tbme.2021.3053463 article EN IEEE Transactions on Biomedical Engineering 2021-01-21

Classical homogenization theory based on the Hashin–Shtrikman coated ellipsoids is used to model changes in complex valued conductivity (or admittivity) of a lung during tidal breathing. Here, modeled as two-phase composite material where alveolar air-filling corresponds inclusion phase. The predicts linear relationship between real and imaginary parts change breathing, loss cotangent approximately same effective background hence easy estimate. illustrated with numerical examples realistic...

10.1088/1361-6463/aabc04 article EN Journal of Physics D Applied Physics 2018-04-06

Abstract Objective This paper define a method for optimizing the breath delineation algorithms used in Electrical Impedance Tomography (EIT). In lung EIT identification of phases is central generating tidal impedance variation images, subsequent data analysis and clinical evaluation. The optimisation these particularly important neonatal care since existing detectors developed adults may give insufficient reliability neonates due to their very irregular breathing pattern. Approach Our...

10.1101/270348 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2018-02-23
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