| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bialkowski, Konstanty
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Mathematical model of common-mode sources in long-cable-fed adjustable speed drivescitations
- 2021Multiple open ended probe for spatio-temporal dielectric spectroscopy: application to evaporative dewateringcitations
- 2020Implantable sensor for detecting changes in the loss tangent of cerebrospinal fluidcitations
- 2019Wearable electromagnetic head imaging using magnetic-based antenna arrayscitations
- 2019Compact implantable antennas for the cerebrospinal fluid monitoringcitations
- 2018Fabrication and characterization of flexible polymer iron oxide composite substrate for the imaging antennas of wearable head imaging systemscitations
- 2018Flexible antenna on high permeability substrate for electromagnetic head imaging systemscitations
- 2017Closed-form equation to estimate the dielectric properties of biological tissues as a function of agecitations
- 2017Miniaturizing electromagnetic invisibility cloaks using double near zero slabs
- 2017Skin tissue characterization of canine at microwave and millimeter-wave frequencies
- 2017Concealment with near-zero materials and their sensitivity to non-zero material parameters
- 2017Size reduction of electromagnetic devices using double near zero materialscitations
- 2017Half-sized cylindrical invisibility cloaks using double near zero slabs with realistic material size and propertiescitations
- 2016Design and experimental evaluation of a non-invasive microwave head imaging system for intracranial haemorrhage detectioncitations
- 2014Convex optimization approach for stroke detection in microwave head imagingcitations
- 2006Design of complementary UWB printed monopole antennas using simple formulascitations
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article
Design and experimental evaluation of a non-invasive microwave head imaging system for intracranial haemorrhage detection
Abstract
An intracranial haemorrhage is a life threatening medical emergency, yet only a fraction of the patients receive treatment in time, primarily due to the transport delay in accessing diagnostic equipment in hospitals such as Magnetic Resonance Imaging or Computed Tomography. A mono-static microwave head imaging system that can be carried in an ambulance for the detection and localization of intracranial haemorrhage is presented. The system employs a single ultra-wideband antenna as sensing element to transmit signals in low microwave frequencies towards the head and capture backscattered signals. The compact and low-profile antenna provides stable directional radiation patterns over the operating bandwidth in both near and far-fields. Numerical analysis of the head imaging system with a realistic head model in various situations is performed to realize the scattering mechanism of haemorrhage. A modified delay-and-summation back-projection algorithm, which includes effects of surface waves and a distance-dependent effective permittivity model, is proposed for signal and image post-processing. The efficacy of the automated head imaging system is evaluated using a 3D-printed human head phantom with frequency dispersive dielectric properties including emulated haemorrhages with different sizes located at different depths. Scattered signals are acquired with a compact transceiver in a mono-static circular scanning profile. The reconstructed images demonstrate that the system is capable of detecting haemorrhages as small as 1 cm(3). While quantitative analyses reveal that the quality of images gradually degrades with the increase of the haemorrhage's depth due to the reduction of signal penetration inside the head; rigorous statistical analysis suggests that substantial improvement in image quality can be obtained by increasing the data samples collected around the head. The proposed head imaging prototype along with the processing algorithm demonstrates its feasibility for potential use in ambulances as an effective and low cost diagnostic tool to assure timely triaging of intracranial hemorrhage patients.