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Figure 1 MRI Cine and Tagged Images
Three-chamber images (top panels), short-axis images (middle panels), and short-axis tagged images (bottom panels), at the time of aortic valve closure at trigger delay of 252 ms (left) and the time of peak right ventricular (RV) shortening at 341 ms (right). The 3-chamber images show that maximal leftward septal bowing occurs at 341 ms, well after aortic valve closure. In the tagged image at 341 ms, the distance of the tagging lines in the RV free wall show further shortening (thick white arrows), whereas the tagging lines in the left ventricular (LV) free wall show relaxation. MRI = magnetic resonance imaging.
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