Inverse estimation of model parametersfor newborn brain cooling process simulations

• Autorzy: Bandoła Dominika , Ostrowski Ziemowit , Rojczyk Marek , Walas Wojciech , Halaba Zenon , Nowak Andrzej J.

Identyfikatory

DOI

10.24423/cames.260

• Języki publikacji: EN

Abstrakty

EN

In this work, a three-dimensional simplified computational model was built to simulate the passive thermo-physiological response of part of a newborn’s head for neonate’s selective brain cooling. Both metabolicheat generation and blood perfusion were considered. The set of model parameters was selected anda sensitivity study was carried out. Analysis of dimensionless sensitivity coefficients showed that the mostimportant are: the contact thermal resistance between the cool-cap and skin, the thermal resistance ofthe plastic wall material, and deep (arterial) blood temperature. The function specification method wasapplied to estimate the value of the contact resistance. Two, four and six computationally simulated mea-surements with different uncertainties were used to adjust random contact resistance value to the assumedone. Results showed that when using only two measurements having 2% of the uncertainty, the error ofestimation does not exceed 9.8%. However, when using six measurements having 1% of uncertainty, theresulting estimation is burdened with an error of 0.3% only.

Słowa kluczowe

EN

inverse method; function specification method; bioheat; brain cooling

PL

metoda odwrotna; metoda specyfikacji funkcji; biociepło; chłodzenie mózgu

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Methods in Engineering and Science
• Rocznik: 2019
• Tom: Vol. 26, no. 2
• Strony: 93--104
• Opis fizyczny: Bibliogr. 20 poz., il., rys., tab., wykr.

Twórcy

autor

Bandoła Dominika

• Silesian University of Technology Institute of Thermal Technology Konarskiego 22, 44-100 Gliwice, Poland

autor

Ostrowski Ziemowit

• Silesian University of Technology Institute of Thermal Technology Konarskiego 22, 44-100 Gliwice, Poland

autor

Rojczyk Marek

• Silesian University of Technology Institute of Thermal Technology Konarskiego 22, 44-100 Gliwice, Poland

autor

Walas Wojciech

• University Clinical Hospital in Opole Department of Children Intensive Care Witosa 26, 45-401 Opole, Poland

autor

Halaba Zenon

• Opole University Faculty of Natural Sciences and Technology Kopernika 11a, 45-040 Opole, Poland

autor

Nowak Andrzej J.

• Silesian University of Technology Institute of Thermal Technology Konarskiego 22, 44-100 Gliwice, Poland

Bibliografia

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