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Tagged human heart images. A: Short-axis images from an equatorial image plane at 15, 90, 165, 240 ms (left to-right) after the end of the tagging sequence. Six tags are radially oriented and centered about the long axis of the left ventricle. B: Long-axis section at the same times shown with tags parallel to the short axis. The right ventricle is to the left on all images.
