Skip to main content
Fig. 2 | BMC Medical Imaging

Fig. 2

From: Improve myocardial strain estimation based on deformable groupwise registration with a locally low-rank dissimilarity metric

Fig. 2

Plots of the end-point errors (EPE), voxelwise strain errors (VSE), and global strains (GS) over a cardiac cycle for one simulated subject. The curves were plotted as a function of normalized time. Groupwise-LLR achieved the lowest errors among the studied methods for tracking, voxelwise strain estimation, and global strain estimation. The largest improvement occurred at end-systole (orange arrows). In late-diastole, the four groupwise methods were more accurate than Farneback optical flow and pairwise registration (blue arrows) due to the elimination of the drift effect. LAX = long-axis; SAX = short-axis; LS = longitudinal strain; CS = circumferential strain; RS = radial strain

Back to article page

BMC Medical Imaging

ISSN: 1471-2342

Contact us