Input impedance, wave travel, and reflections in the human pulmonary arterial tree: studies using an electrical analog.

An electrical model of the human pulmonary arterial tree has been developed using modern oscillatory flow theory. By comparison with corresponding in vivo measurements of 1) pressure and flow waveshapes, 2) input impedance, and 3) apparent phase velocity, this passive, multisegmental, linear delay line model is shown to bear a close resemblance to reality.

[1]  J. Greenfield,et al.  Relation between pressure and diameter in main pulmonary artery of man , 1963, Journal of applied physiology.

[2]  E. Wood,et al.  The structure of the pulmonary trunk at different ages and in cases of pulmonary hypertension and pulmonary stenosis. , 1959, The Journal of pathology and bacteriology.

[3]  D. J. Patel,et al.  Mechanical properties and dimensions of the major pulmonary arteries. , 1960, Journal of applied physiology.

[4]  A B DUBOIS,et al.  Mechanics of pulmonary circulation in isolated rabbit lungs. , 1959, The American journal of physiology.

[5]  M P SPENCER,et al.  Dynamics of Ventricular Ejection , 1962, Circulation research.

[6]  Caro Cg,et al.  Observations on pulse wave velocity and pulsatile blood pressure in the human pulmonary circulation. , 1962 .

[7]  D. J. Patel,et al.  Pressure‐Radius Relationship in Large Blood Vessels of Man , 1962, Circulation research.

[8]  D. A. Mcdonald,et al.  The relation of pulsatile pressure and flow in the pulmonary vascular bed , 1961, The Journal of physiology.

[9]  D. J. Patel,et al.  Mechanical function of the main pulmonary artery. , 1962, Journal of applied physiology.

[10]  D J Patel,et al.  Pressure-flow relationships in the ascending aorta and femoral artery of man. , 1965, Journal of applied physiology.

[11]  W. Milnor,et al.  ACTIVE AND PASSIVE COMPONENTS OF PULMONARY VASCULAR RESPONSE TO VASOACTIVE DRUGS IN THE DOG. , 1963, The American journal of physiology.

[12]  J. D. Bargainer,et al.  Hydraulic Power Associated with Pulmonary Blood Flow and its Relation to Heart Rate , 1966, Circulation research.

[13]  J D Bargainer,et al.  Pulse Wave Velocity in the Main Pulmonary Artery of the Dog , 1967, Circulation research.

[14]  E. Attinger,et al.  Pressure Transmission in Pulmonary Arteries Related to Frequency and Geometry , 1963, Circulation research.

[15]  R. Boucek,et al.  ANGIOGRAPHIC EVIDENCE OF PULMONARY VASOMOTION IN THE DOG , 1963, British heart journal.

[16]  D. J. Patel,et al.  Hydraulic input impedance to aorta and pulmonary artery in dogs. , 1963, Journal of applied physiology.

[17]  D. Bergel,et al.  Pulmonary Vascular Impedance in the Dog , 1965, Circulation research.

[18]  E. Agostoni,et al.  Capillary pressure and distribution of vascular resistance in isolated lung. , 1962, The American journal of physiology.

[19]  D. J. Patel,et al.  Instantaneous Pressure Distribution Along the Human Aorta , 1964, Circulation research.

[20]  P. Saffman,et al.  Extensibility of blood vessels in isolated rabbit lungs , 1965, The Journal of physiology.

[21]  D. Bergel,et al.  The dynamic elastic properties of the arterial wall , 1961, The Journal of physiology.

[22]  Gerard N. Jager,et al.  Oscillatory Flow Impedance in Electrical Analog of Arterial System: Representation of Sleeve Effect and Non‐Newtonian Properties of Blood , 1965, Circulation research.

[23]  M. G. Taylor,et al.  The input impedance of an assembly of randomly branching elastic tubes. , 1966, Biophysical journal.

[24]  A. Luisada,et al.  Studies of Fluorocardiography in Normal Subjects , 1948, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine.

[25]  D. Shaw.  THE PRESSURE WAVE FORM IN THE PULMONARY ARTERY , 1963, British heart journal.

[26]  J. Karnell,et al.  MEASUREMENT OF INPUT IMPEDANCE AND APPARENT PHASE VELOCITY IN THE HUMAN AORTA. , 1964, Acta physiologica Scandinavica.