An exploration around strain analysis may be required in order to devise a new algorithm based on a `triple sandwich' approach, wherein acquisition of images of the human heart have clippings/occlusions in three dimension such that only a small cube is isolated for analysis or some form of tagging.
To use http://www.ecourses.ou.edu/cgi-bin/eBook.cgi?doc=&topic=me&chap_sec=07.1&page=theorya figure from Kurt Gramoll of the University of Oklahoma
(Figure ), for a given element such as the
one shown in Figure
, stresses along the four sides
are denoted by subscripts
and
(in 2-D). Ways exist for
calculating different types of stresses based on different parameters,
including angles in some cases.