title: Strain rate imaging: why do we need it?
authors: Otto A
authors: OA
authors: Smiseth
authors: Halfdan
authors: H
authors: Ihlen
mesh_terms: D000818:Animals; D015150:Echocardiography, Doppler / Q000379:methods*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D012756:Sheep; D016277:Ventricular Function, Left