A method for controlling at least one pump in a perfusion apparatus for delivering a fluid to at least one organ through a plurality of vessels for maintaining the viability of the at least one organ, the method including supplying a fluid to a first vessel of an organ and to a second vessel of an organ； measuring a first parameter of the fluid flowing in the first vessel and a second parameter of the fluid flowing in the second vessel； and executing direct control of the second parameter of the fluid flowing in the second vessel to influence the first parameter of the fluid flowing in the first vessel.
