1. A computer program product comprising a computer useable medium having computer program logic recorded thereon for enabling a processor in a computer system to monitor hemodynamics of a living body, said computer program logic comprising: means for enabling the processor to flow a predetermined current through a portion of the living body between a pair of electrodes; means for enabling the processor to detect variations of impedance at a plurality of detection points arranged between said electrodes; means for enabling the processor to output detected signals obtained at the detection points in relation to positions of the detection points; means for enabling the processor to provide a voltage detection; means for enabling the processor to map a two dimensional map of said impedance variations at the respective detection points, including sampling said detected signals, detecting the Q wave portion of said detected signals, and generating a pulse corresponding to said Q wave portion; and means for enabling the processor to display said two dimensional map.