Figure 1From: Deformation analysis of 3D tagged cardiac images using an optical flow methodRepresentative LV with 3D tag planes superimposed. The third tag plane is oriented 45° relative to the in-plane tags (x-tag, y-tag) (A) and the angle relative to the z-axis is represented by β (B). The three tag planes create dark stripes on the LV wall, which serve as landmarks for 3D OFM tracking.Back to article page