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. 2019 Mar 14;8(6):e009124. doi: 10.1161/JAHA.118.009124

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© 2019 The Author. Published on behalf of the American Heart Association, Inc., by Wiley.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Representative high‐resolution magnetic resonance images of an isolated canine left ventricle (LV) undergoing passive inflation. A and B, Representative short‐axis and long‐axis images in the experimental end‐systolic state. C and D, The same image planes but in the experimental, physiologic end‐diastolic state. The signal decrease in the LV cavity results from deuterium (D₂O) added to the water filling the balloon. The Teflon mitral valve collar and nozzle assembly is apparent as a darker‐appearing slab in the top center of the long‐axis images. The green dot in (A) represents the middle of the septal wall.