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Aortic pressure (AoP, dotted), LV pressure (LVP, solid), and coronary artery flow (CoF) with the counterpulsation device (CPD) operating with the early filling late ejection (a, b) and late filling early ejection algorithms (c, d). These figures show the (1) device filling and (2) device ejection timings. These data demonstrate lower LVP during ejection with the early filling late ejection algorithm.
