modelVentricle
Extends from Physiomodel.CardioVascular.Heart.Interfaces.IVentricle.
Information
Heart ventricle.
like
QHP 2008 / VascularCompartments/LeftVentricle/*
The pressure-volume characteristics of both ventricles in diastole
and systole will be described using a power function.
P = A * (V ^ n)
P = Pressure
V = Volume
A = Scale Factor
n = curvature
The function is invertable.
V = (P/A) ^ (1/n)
Some typical values
Right Left
---------------------- ------------------------
Nominal Vol 87.5 87.5
Nominal TMP 3.0 6.0
Compliance 29.2 14.6
Pericardial P -3.0 -3.0
DIASTOLE
EDP 1.0 5.0
EDV 125.0 125.0
TMP 4.0 8.0
n 2.0 2.0
V^n 15625.0 15625.0
A 0.00026 0.00051
SYSTOLE
ESP 22.0 120.0
ESV 50.0 50.0
TMP 25.0 123.0
n 0.5 0.5
V^n 7.07 7.07
A 3.53 17.39
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Physiolibrary.Types.Volume | initialVol (from IVentricle) | 90e-6 | Initial blood volume in ventricle |
| Physiolibrary.Types.Frequency | K (from IVentricle) | time adaptation coeficient of average ventricle blood volume | |
| Physiolibrary.Types.HydraulicCompliance | BasicCompliance (from IVentricle) | ||
| Physiolibrary.Types.Pressure | NormalExternalPressure (from IVentricle) | -446 | Typical value of pericardium cavity pressure (relative to environment ambient pressure) |
| String | stateName | ||
| Diastole | |||
| Physiolibrary.Types.Volume | NormalEndDiastolicVolume (from IVentricle) | 70e-6 | Typical value of blood volume in ventricle after filling |
| Physiolibrary.Types.Pressure | NormalFillingPressure (from IVentricle) | (0.00051*101325/760)*(NormalEndDiastolicVolume^(1/n_Diastole)) | Typical value of filling pressure relative to pericardium pressure |
| Physiolibrary.Types.Fraction | stiffnes (from IVentricle) | 1 | Relative stiffnes (1 if normal) |
| Physiolibrary.Types.Fraction | n_Diastole (from IVentricle) | 2 | Exponent of P-V characteristic of EDV curve on filling pressure |
| Systole | |||
| Physiolibrary.Types.Pressure | NormalSystolicPressure (from IVentricle) | 15998.684210526315789473684210526 | Typical value of systolic pressure relative to pericardium pressure |
| Physiolibrary.Types.Volume | NormalEndSystolicVolume (from IVentricle) | (NormalSystolicPressure/(17.39*101325/760))^(n_Systole) | Typical value of blood volume in ventricle after ejection |
| Physiolibrary.Types.Pressure | additionalPressure_Systolic (from IVentricle) | Pressure difference between mean and systolic pressure | |
| Physiolibrary.Types.Fraction | contractilityBasic (from IVentricle) | Relative contractility (1 if normal) | |
| Physiolibrary.Types.Fraction | n_Systole (from IVentricle) | 0.5 | Exponent of P-V characteristic of ESV curve on systolic pressure |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Physiolibrary.Types.BusConnector | busConnector (from IVentricle) | ||
| Physiolibrary.Types.RealIO.VolumeOutput | Vol (from IVentricle) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Physiolibrary.Hydraulic.Interfaces.HydraulicPort_a | q_in (from IVentricle) | ||
| Physiolibrary.Hydraulic.Interfaces.HydraulicPort_b | q_out (from IVentricle) | ||
| Physiolibrary.Types.Constants.FractionConst | basicContractility | ||
| Physiomodel.Nerves.BetaReceptorsActivityFactor | betaReceptorsActivityFactor | ||
| Modelica.Blocks.Math.Add | Vol_SteadyState | ||
| Physiomodel.CardioVascular.Heart.Diastole | diastole | ||
| Systole | systole | ||
| Modelica.Blocks.Math.Feedback | StrokeVolume | ||
| VentricleVolumeAndPumping2 | ventricle | ||
| Modelica.Blocks.Math.Product | BloodFlow |
Revisions
| Author: | Marek Matejak |
| License: | Physiomodel License 1.0 |
| By: | Charles University, Prague |
| Date of: | january 2009 |
| References: | Tom Coleman: QHP 2008 beta 3, University of Mississippi Medical Center |
Copyright © 2014 Marek Matejak, Charles University in Prague.