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Endocardial blurring (EB) for each trigger method. Mean EB (± standard deviation) for electrocardiogram (ECG), Doppler ultrasound (DUS), and pulse oximetry (POX) triggering averaged over the entire cardiac cycle (All), referring to the cardiac cycle (diastole and systole) and encoding direction (frequency and phase). Significant differences between cardiac cycles, encoding direction, and trigger methods are marked within the figure.
