Here is what you may experience ...



that kind of problem occurs when little / no cavity exists on the end-systolic phase (hypertrophic and/or enlarged papillary muscle). If the slice level is too apical without cavity segmentation will probably fails.

1-check the data
-did you select properly the end-systolic phase?
-did you check the contour template on the previous step (step 4)

2- go back to step 4


and define the contour template differently..


You may have to test different endocardial templates options to help endocardial segmentation :

In our example, bellow is the initial contour template -> wrong resulting segmentation



Now, let’s try a smaller endocardial contour template (step 4) toward the cavity (usually try to to locate contour template on the myocardial side of the endocardial and epicardial interface..) -> now we get a much better segmentation;