Detection of emboli in vessels using electrical impedance measurements—phantom and electrodes

Nebuya, Satoru; Noshiro, Makoto; Brown, Brian; Smallwood, R. H.; Milnes, P.

doi:10.1088/0967-3334/26/2/011

Cited by 14 publications

(10 citation statements)

References 10 publications

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“…However, we used a non-invasive concentric ring-type surface electrode as a novel approach for measuring oral tissues. Previously, such ring electrodes have been applied, e.g., for the detection of emboli in vessels [ 29 ], characterization of food [ 30 ], and recording of brain signals [ 31 ]. The Bode plots of the mean BIS spectra ( Figure 6 ) for ex vivo pork oral tissues show evidence of their significantly different electrical characteristics.…”

Section: Discussionmentioning

confidence: 99%

Concentric Ring Probe for Bioimpedance Spectroscopic Measurements: Design and Ex Vivo Feasibility Testing on Pork Oral Tissues

Emran

Lappalainen

Kullaa

et al. 2018

Sensors

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Many oral diseases, such as oral leukoplakia and erythroplakia, which have a high potential for malignant transformations, cause abnormal structural changes in the oral mucosa. These changes are clinically assessed by visual inspection and palpation despite their poor accuracy and subjective nature. We hypothesized that non-invasive bioimpedance spectroscopy (BIS) might be a viable option to improve the diagnostics of potentially malignant lesions. In this study, we aimed to design and optimize the measurement setup and to conduct feasibility testing on pork oral tissues. The contact pressure between a custom-made concentric ring probe and tissue was experimentally optimized. The effects of loading time and inter-electrode spacing on BIS spectra were also clarified. Tissue differentiation testing was performed for ex vivo pork oral tissues including palatinum, buccal mucosa, fat, and muscle tissue samples. We observed that the most reproducible results were obtained by using a loading weight of 200 g and a fixed time period under press, which was necessary to allow meaningful quantitative comparison. All studied tissues showed their own unique spectra, accompanied by significant differences in both impedance magnitude and phase (p ≤ 0.014, Kruskal-Wallis test). BIS shows promise, and further studies are warranted to clarify its potential to detect specific pathological tissue alterations.

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Section: Discussionmentioning

confidence: 99%

Concentric Ring Probe for Bioimpedance Spectroscopic Measurements: Design and Ex Vivo Feasibility Testing on Pork Oral Tissues

Emran

Lappalainen

Kullaa

et al. 2018

Sensors

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“…Skin models based on agar have been proposed first by Cubeddu et al (31) as an alternative to resin and liquid skin models. Since then, many groups have adopted agar skin models (32,33).…”

Section: Agarmentioning

confidence: 99%

“… as an alternative to resin and liquid skin models. Since then, many groups have adopted agar skin models .…”

Section: Gelatinous Substancesmentioning

confidence: 99%

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Materials used to simulate physical properties of human skin

Dąbrowska

Rotaru

Derler

et al. 2015

Skin Research and Technology

194

129

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“…Οι Nebuya et al (1999Nebuya et al ( , 2005 Σχήµα 3-2. Σκαρίφηµα πειραµατικής διάταξης in vitro µετρήσεων.…”

Section: μέθοδοι ανίχνευσης φυσαλίδων σε In Vivo εφαρµογέςunclassified

Ανάπτυξη Ηλεκτρικής Τεχνικής Για Την Ανίχνευση Και Χαρακτηρισμό Φυσαλίδων Σε Ροή Υγρών

Ευγενίδης¹

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Ανάπτυξη ηλεκτρικής τεχνικής για την ανίχνευση και χαρακτηρισµό φυσαλίδων σε ροή υγρών ISBN « Η έγκριση της παρούσης ∆ιδακτορικής ∆ιατριβής από το Τµήµα Χηµείας του Αριστοτελείου Πανεπιστηµίου Θεσσαλονίκης δεν υποδηλώνει αποδοχή των γνωµών του συγγραφέως» (Ν. 5343/1932, άρθρο 202, παρ. 2) ix ΚΑΤΑΛΟΓΟΣ ΣΧΗΜΑΤΩΝ Σχήµα 2-1.Περιοχές ροής σε κατακόρυφη ανοδική οµορροή υγρού-αερίου (Thome, 2009). Σχήµα 2-2. Χάρτης περιοχών ροής για κατακόρυφη ανοδική οµορροή υγρού-αερίου (Taitel et al., 1980).Σχήµα 2-3. Τυπική διάταξη µεθόδου ανίχνευσης ραδιοσυχνοτήτων (Snoek, 1990).

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Detection of emboli in vessels using electrical impedance measurements—phantom and electrodes

Cited by 14 publications

References 10 publications

Concentric Ring Probe for Bioimpedance Spectroscopic Measurements: Design and Ex Vivo Feasibility Testing on Pork Oral Tissues

Concentric Ring Probe for Bioimpedance Spectroscopic Measurements: Design and Ex Vivo Feasibility Testing on Pork Oral Tissues

Materials used to simulate physical properties of human skin

Ανάπτυξη Ηλεκτρικής Τεχνικής Για Την Ανίχνευση Και Χαρακτηρισμό Φυσαλίδων Σε Ροή Υγρών

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