Case-Specific Focal Sensor Design for Cardiac Electrical Impedance Tomography.
cardiac imaging
conformal transformation
electrical impedance tomography
sensor design
Journal
Sensors (Basel, Switzerland)
ISSN: 1424-8220
Titre abrégé: Sensors (Basel)
Pays: Switzerland
ID NLM: 101204366
Informations de publication
Date de publication:
10 Nov 2022
10 Nov 2022
Historique:
received:
16
09
2022
revised:
02
11
2022
accepted:
08
11
2022
entrez:
26
11
2022
pubmed:
27
11
2022
medline:
30
11
2022
Statut:
epublish
Résumé
Electrical impedance tomography (EIT) is a non-invasive detection technology that uses the electrical response value at the boundary of an observation field to image the conductivity changes in an area. When EIT is applied to the thoracic cavity of the human body, the conductivity change caused by the heartbeat will be concentrated in a sub-region of the thoracic cavity, that is, the heart region. In order to improve the spatial resolution of the target region, two sensor optimization methods based on conformal mapping theory were proposed in this study. The effectiveness of the proposed method was verified by simulation and phantom experiment. The qualitative analysis and quantitative index evaluation of the reconstructed image showed that the optimized model could achieve higher imaging accuracy of the heart region compared with the standard sensor. The reconstruction results could effectively reflect the periodic diastolic and systolic movements of the heart and had a better ability to recognize the position of the heart in the thoracic cavity.
Identifiants
pubmed: 36433295
pii: s22228698
doi: 10.3390/s22228698
pmc: PMC9696084
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : National Natural Science Foundation of China
ID : 61971304
Organisme : National Natural Science Foundation of China
ID : 51976137
Organisme : Natural Science Foundation of Tianjin
ID : 19JCZDJC38900
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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