Figure 2

left: Post-mortem human heart, with connecting tubes for the purpose of producing well-defined volume changes during the ex-vivo post-mortem calibration measurements as described in section Methods: ex-vivo post-mortem calibration. right: Experimental set-up with a postmortem human thorax, a post-mortem human heart, and a matrix of 5 ×5 measuring electrodes on the skin of the postmortem human thorax. For visibility purposes, the thorax has been made semi-transparent in this image, in order to show the position of the heart lying underneath.