Left Ventricular Longitudinal Function Assessed by Speckle Tracking Ultrasound from a Single Apical Imaging Plane

<table>Bland Altman plot with mean difference and limits of agreement between Q-analysis of global peak systolic strain from the subcostal 4-chamber view (Q-SU4C) view compared to AFI global peak systolic strain (AFI-AP4C).</table>

Critical Care Research and Practice

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Figure 3

Figure 3: Left Ventricular Longitudinal Function Assessed by Speckle Tracking Ultrasound from a Single Apical Imaging Plane 