The invention relates to acquiring information concerning the hemodynamicstatus of the brain (or any other organ) by measuring and analysing thepulsatile properties of blood flow (velocities) in the organ's feeding vesselsin relation to the pulsatile properties of the systemic arterial bloodpressure. Provided is a system for the analysis of arterial blood flowvelocity measurements, comprising means for receiving input signals deliveredby an arterial blood flow velocity (FV) sensor and by an arterial bloodpressure (BP) sensor, wherein said FV and BP signals are recordedsimultaneously and continuously, further comprising means for processing andoutputting signals, wherein said processing comprises calculating thepulsatile apparent resistance (PaR) or the Pulse Flow Velocity Mismatch(PFVM). Plotting PAR or PFVM against mean arterial blood pressure and/or endtidal C02 levels can serve as an indicator for the effectiveness of imposedtherapy.
