TY - JOUR N2 - A complex model of mechanically ventilated ARDS lungs is proposed in the paper. This analogue is based on a combination of four components that describe breathing mechanics: morphology, mechanical properties of surfactant, tissue and chest wall characteristics. Physical-mathematical formulas attained from experimental data have been translated into their electrical equivalents and implemented in MultiSim software. To examine the adequacy of the forward model to the properties and behaviour of mechanically ventilated lungs in patients with ARDS symptoms, several computer simulations have been performed and reported in the paper. Inhomogeneous characteristics observed in the physical properties of ARDS lungs were mapped in a multi-lobe model and the measured outputs were compared with the data from physiological reports. In this way clinicians and scientists can obtain the knowledge on the moment of airway zone reopening/closure expressed as a function of pressure, volume or even time. In the paper, these trends were assessed for inhomogeneous distributions (proper for ARDS) of surfactant properties and airway geometry in consecutive lung lobes. The proposed model enables monitoring of temporal alveolar dynamics in successive lobes as well as those occurring at a higher level of lung structure organization, i.e. in a point P0 which can be used for collection of respiratory data during indirect management of recruitment/de-recruitment processes in ARDS lungs. The complex model and synthetic data generated for various parametrization scenarios make possible prospective studies on designing an indirect mode of alveolar zone management, i.e. with L1 - http://journals.pan.pl/Content/106329/PDF/10.1515-mms-2017-0053-paper%2009.pdf L2 - http://journals.pan.pl/Content/106329 PY - 2017 IS - No 4 EP - 685–699 DO - 10.1515/mms-2017-0053 KW - lung alveolar surfactant KW - respiratory mechanics KW - mathematical modelling KW - medical decision support KW - lung protective ventilation A1 - Glapiński, Jarosław A1 - Jabłoński, Ireneusz PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 24 DA - 2017.12.15 T1 - Minimization of Ventilator-Induced Lung Injury in ARDS Patients – Part I: Complex Model of Mechanically Ventilated ARDS Lungs SP - 685–699 UR - http://journals.pan.pl/dlibra/publication/edition/106329 T2 - Metrology and Measurement Systems ER -