Evaluation of a Model-Based Hemodynamic Monitoring Method in a Porcine Study of Septic Shock
Table 1
List of identified parameters and corresponding measurements used to identify them for the simplified systemic, simplified pulmonary, and six-chamber models. Each line on the table represents a measurement/parameter pair, where the measurement on the line is used to directly identify the corresponding parameter. All the parameters in this table, except for the valve resistances, are uniquely identified for each set of measurements. The valve resistances are identified for each set of measurements and then averaged for a subject.
Model
Measurement
Identified parameter
Name
Symbol
Name
Symbol
Systemic
Global end diastolic volume
GEDV
Left ventricular elastance
Stroke volume
SV
Mitral valve resistance
Mean aortic pressure
MAP
Systemic vascular resistance
Aortic pulse pressure
Aortic elastance
Maximum ascending aortic gradient
Aortic valve resistance
Mitral valve closure time
Pulmonary vein pressure
Pulmonary
Global end diastolic volume
GEDV
Right ventricular elastance
Stroke volume
SV
Tricuspid valve resistance
Mean pulmonary artery pressure
MPAP
Pulmonary valve resistance
Pulmonary artery pulse pressure
Pulmonary artery elastance
Maximum ascending pulmonary artery pressure
Pulmonary valve resistance
Tricuspid valve closure time
Vena cava pressure
6 chamber
Vena cava pressure (identified from systemic model)
Vena cava elastance
Pulmonary vein pressure (identified from pulmonary model)