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Figure 3 Transthoracic echocardiogram in a representative animal after transmyocardial implant (TMI) placement. Note the multiple TMI devices in the chronically ischemic left circumflex (LCx) distribution (lateral and posteroinferior walls of the left ventricle). Arrows in the upper right indicate the location of the papillary muscles. The LCx distribution lies between the papillary muscles and has been entirely treated with TMI devices.