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Figure 1 | Cardiovascular Ultrasound

Figure 1

From: Left ventricular strain and peak systolic velocity: responses to controlled changes in load and contractility, explored in a porcine model

Figure 1

A representative pressure-volume measurement sequence during controlled load reduction by transient vena cava balloon occlusion is shown. This demonstrates that there are progressive beat-by-beat reductions in both pre- and post-systolic volumes and pressures, indicating systematic and progressive reduction in preload and afterload. The volumes and pressures for this measurement sequence are within the normal operating ranges for the heart and circulation.

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