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Ocena tlaka v notranji jugularni veni na osnovi ultrazvočne meritve
ID Čeč, Simon (Author), ID Urevc, Janez (Mentor) More about this mentor... This link opens in a new window, ID Halilovič, Miroslav (Comentor)

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Abstract
Delo obravnava področje neinvazivnega ocenjevanja venskega tlaka. Tradicionalni postopki temeljijo na vizualni oceni višine meniskusa jugularne vene in zahtevajo medicinsko usposobljeno osebo, poleg tega pa so pogosto nepraktični in nezanesljivi. Predlagana je nova metoda, ki temelji na ultrazvočnih meritvah desnega predela vratu in omogoča numerično oceno venskega tlaka na osnovi pomerjenih pomikov ter sil, ki delujejo pri pritisku ultrazvočne sonde. Delo je strukturirano tako, da smo najprej pregledali anatomijo vratu, zlasti venske in arterijske strukture, ter okoliško mišično in vezivno tkivo. Na osnovi podatkov iz literature so bili določeni začetni mehanski parametri tkiv, ki so bili nato iterativno prilagojeni z namenom uskladitve numerične simulacije z eksperimentalnimi meritvami. Za validacijo pristopa smo izdelali fantomski model iz želatine, ki je omogočil primerjavo simulacijskih rezultatov z dejanskimi pomiki pri znanih obremenitvah. Rezultati kažejo, da je z ustrezno določenimi vhodnimi podatki in natančnim numeričnim modelom mogoče oceniti venski tlak na osnovi ultrazvočnih meritev, kar potrjuje uporabnost predlagane metode.

Language:Slovenian
Keywords:venski tlak, ultrazvočna meritev, mišica, modul elastičnosti, fantomski model, simulacija
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2025
Number of pages:XXIV, 81 str.
PID:20.500.12556/RUL-169337 This link opens in a new window
UDC:620.179.16:616.12-008.34:519.876.5(043.2)
COBISS.SI-ID:240348931 This link opens in a new window
Publication date in RUL:24.05.2025
Views:322
Downloads:0
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Secondary language

Language:English
Title:Estimation of pressure in the internal jugular vein based on an ultrasound examination
Abstract:
The thesis addresses the field of non-invasive assessment of venous pressure. Traditional procedures are based on visual estimation of the height of the jugular vein meniscus and require a medically trained person, while often being impractical and unreliable. A new method is proposed, based on ultrasound measurements of the right side of the neck, which enables numerical estimation of venous pressure using the measured displacements and forces applied by the ultrasound probe. The work is structured in such a way that we first reviewed the anatomy of the neck, focusing on venous and arterial structures as well as the surrounding muscle and connective tissue. Based on data from the literature, initial mechanical parameters of the tissues were defined and then iteratively adjusted to align the numerical simulation with the experimental measurements. For validation of the approach, a gelatin-based phantom model was created, allowing comparison of the simulation results with actual displacements under known loads. The results show that, with appropriately defined input data and a sufficiently accurate numerical model, it is possible to estimate venous pressure based on ultrasound measurements, confirming the applicability of the proposed method.

Keywords:venous pressure, ultrasound measurement, muscle, elastic modulus, phantom model, simulation

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