A model of the pulmonary arterial bed in adults and infants

✍ Scribed by Malcolm B McIlroy; Victor K. Hargrave; Ralph C. Targett

• Book ID: 103049848
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 487 KB
• Volume: 23
• Category: Article
• ISSN: 0010-4809
• DOI: 10.1016/0010-4809(90)90012-2

✦ Synopsis

Recei ved October 13. 19X8 A microcomputer model based on an equivalent model of the systenuc artcl-ial circulation was used to simulate the pulmonary arterial circulation. The elements chosen to represent the physical properties of the pulmonary arterial bed were determined from the characteristic impedances and time delays i n the system. A terminal resistance that provi ded a reflection coefficient of 0.56 at a heart rate of 75 min-' was chosen. The model simulated normal values for pressure and bl ood velocity i n the main pulmonary artery and pulmonary capillary bed of adults and newborn infants. The results indicate that the relatively simple physical principles used to expl ai n systemic hemodynamics are equally appl i cabl e to the pulmonary arterial circulation.