Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Dean L. Franklin"'
Publikováno v:
Circulation Research. 10:17-26
The right ventricular ejection pattern is characterized by early onset, gradual rise to peak flow velocities in midsystole and gradual return to baseline. Left ventricular ejection begins very shortly after right ventricular systole, abruptly reaches
Publikováno v:
Proceedings of the IRE. 47:1917-1924
Classical investigation into the function and control of the heart has been conducted on anesthetized open-chested dogs. Unfortunately, both the anesthetics and the exposure of the heart affect cardiac function. Hence, more realistic information woul
Publikováno v:
Circulation Research. 24:33-42
Radiotelemetry was used to study regional blood flow distribution in Alaska sled dogs during cross-country runs. Doppler ultrasonic flowmeter transducers were chronically implanted on the coronary, renal, and mesenteric arteries, terminal abdominal a
Publikováno v:
IRE Transactions on Bio-Medical Electronics. 9:44-49
The difference in effective velocity of sound pulses propagated alternately upstream and downstream through moving blood is a measure of the blood velocity. A blood flowmeter based on this principle has been developed and employed in routine experime
Autor:
Nolan Watson, Donald W. Baker, Raymond Smith, William Schlegel, Donald Harding, Robert L. Van Citters, Robert F. Rushmer, Dean L. Franklin
Publikováno v:
Circulation. 26:445-459
The first step in analyzing any clinical problem must be the identification and precise definition of the entity. An adequate definition must be based on accurate and quantitative description in terms of crucial variables. Since many of the essential
Publikováno v:
Circulation Research. 11:702-711
A description in standard physical terminology of the variations of the left ventricle in its role as a pump was derived. Left ventricular pressure, left ventricular outflow, and an external dimension of the left ventricle were measured in unanesthet
Publikováno v:
IRE Transactions on Medical Electronics. :204-206
A pulsed ultransonic flowmeter has been developed specifically for the simultaneous measurement of blood flow through various major blood vessels in the intact unanesthetized animal. The flow section is a small (1-3 cm) lucite cylinder which is clamp
Publikováno v:
Science. 152:384-386
Blood pressure was telemetered from transducers chronically implanted in the carotid arteries of two adult, wild, male giraffes captured and released near Kiboko, Kenya. Cerebral perfusion pressure ranged from 280/180 mm-Hg while the animal was lying
Publikováno v:
Circulation research. 5(3)
Ventricular responses during spontaneous activity by intact dogs have been studied by using electronic computors to continuously analyze ventricular function in terms of various parameters, including effective ventricular pressure, changes in left ve