Hemodynamics, Dr. D. Penney




Perfusion Pressure (pressure head, driving pressure)

Pp = PT.M.1 - PT.M.2 ....... The difference between two transmural pressures

e.g. Pp = Pa - Pv

................Where:
.......................... Pa = mean arterial pressure
.......................... Pv = mean venous pressure


Perfusion pressure = Flow x Resistance
...... like, voltage (E) = current (I) x resistance (R)


or E = IR (Ohm's Law)






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