Validation and Development of a New Automatic Algorithm for Time-Resolved Segmentation of the Left Ventricle in Magnetic Resonance Imaging

Figure 1

Calculation of balloon force (Step 2). A midventricular slice of a short-axis stack (a) and the endocardial (b) and epicardial (c) balloon force images calculated in Step 2 with the automatic algorithm. The color scale indicates how the deformable model should expand to include pixels with positive values (red) and contract to exclude pixels with negative values (blue).

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