Measurement of ventricular volume by intracardiac impedance: theoretical and empirical approaches.
D000818:Animals; D006328:Cardiac Catheterization / Q000379:methods*; D002306:Cardiac Volume; D002307:Cardiography, Impedance / Q000379:methods*; D004285:Dogs; D008433:Mathematics; D008955:Models, Cardiovascular; D010992:Plethysmography, Impedance / Q000379:methods*; D013318:Stroke Volume