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Figure 1 Comparative sensitivity of pressure-decay assessments (see Methods section for definitions of parameters) to small variations in the input data. Upper panels display the consequence of varying the lower pressure cut-off point from 2 to 10 mm Hg above end-diastolic pressure (EDP). Lower panels display the effects from a pure downward offset displacement of the LV pressure data (LVP) by 0 to –10 mm Hg. Data are displayed as mean percent change (±SEM) relative to a reference state (leftward condition in each plot). * p < 0.05 versus reference, based on RMANOVA (repeated measures analysis of variance).