Skip to main content
Figure 6 | Journal of Cardiovascular Magnetic Resonance

Figure 6

From: Fiber architecture in remodeled myocardium revealed with a quantitative diffusion CMR tractography framework and histological validation

Figure 6

HA classification of fiber tracts in normal and infarcted sheep hearts . Fiber tracts in the lateral wall of (A-D) a normal human heart and (E-H) a normal sheep heart are shown. (I-L) Fiber tracts in the lateral wall (remote zone) of a sheep heart with a large anteroseptal infarct. The hearts are being viewed from their epicardial surface. In the normal human and sheep hearts (A, E) the subepicardial fibers have a highly negative HA (red) and form a symmetric array of crossing helices with the subendocardial fibers. (I) The subepicardial fibers in the remote zone of the infarcted sheep heart have undergone a rightward rotation and no longer have a highly negative HA. Compared to the subepicardial fibers in the normal sheep heart (E vs. I), the subepicardial fibers in the remote zone have a more circumferential orientation (yellow rather than red). The rightward shift in the remote zone is well seen with median HA classification (F vs. J) as well as with the minimum HA classification (H vs. L).

Back to article page