Co-attention spatial transformer network for unsupervised motion tracking and cardiac strain analysis in 3D echocardiography. - Shawn S. Ahn; Kevinminh Ta; Stephanie Thorn; John A. Onofrey; Inga H. Melvinsdottir; Supum Lee; Jonathan Langdon; Albert J. Sinusas; James S. Duncan (Medical Image Anal., 2023)