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Figure 1 Mid-late systolic multislice computed tomography image reconstruction with retrospective electrocardiogram-gating: within mid-late systole (ejection phase: 2 and 3), aortic valve is opened. Image reconstruction window (R) was positioned within mid-late systole approximately corresponding to T-wave. The time point of reconstruction window was estimated by subtracting the time of isovolumetric contraction (1) (0.05 s) from overall duration of cardiac cycle dependent on heart rate. bpm = beats/min.
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