Haemosesis 256™ uses specialised data acquisition method followed by precision digital signal processing (DSP) techniques to obtain minute changes that take place in our cardiovascular system every mili-second. The acquired data consists of pulsatile changes that occur due to blood flow during systole and diastole, changes due to the breathing activity, electrical and mechanical activity during the entire cardiac cycle.A Special device called “Vertical Acceleration Detector” or VAD is used together with DSP techniques to record the flow pattern (laminar or turbulent) during various instances of the cardiac cycle, together with the signals pertaining to the opening and closing of the Mitral and Aortic valve. The acquired Information from every beat for 256 beats during a procedure is used to measure the Volumes, the Pressures, and Inter and Intra-cycle timings. Flow of Blood into the Heart, out of the Heart and into the coronary circulation is then computed during various times of the Cardiac cycle (Blood flow is a function of the Pressure, Volume and Time).  It is Important to know that Blood flowing into the heart, out of the heart and into the coronary system takes place at different moment of time within the same cardiac cycle.

The Cardiac Cyle - Non-Invasively obtained dV/dt Curve.  Time related with other physiological curve, as produced by Haemoseis 256™

     
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