Three Dimensional Tracking of Tag Intersections in Tagged MRI
Amano A, Matsuda T, Shimizu Y, Jin X
Tagged magnetic resonance imaging allows for non-invasive in-vivo measurement of tissue deformation by creating planes of magnetic saturation, which exhibit themselves as black lines in the images. For reliable spatio temporal tracking of the tags sophisticated image analysis methods are of necessity. A time consuming step, when using the common two-dimensional approaches, is the matching of the tag lines to tag surfaces through the slices. Here, an algorithm is presented, which is based on tracing the tag-intersections in a three-dimensional and in this way the tedious process of reassigning the slices becomes superfluous.