Image Processing and Analysis in Tagged Cardiac MRI

William S. Kerwin 1 Introduction 375

Nael F. Osman 2 Background 376

Jerry L. Prince 2.1 LV Anatomy and Motion • 2.2 Tagging • 2.3 Imaging

Johns Hopkins University 3 Tagged Image Processing 379

3.1 Tag Line Tracking • 3.2 Optical Flow • 3.3 Harmonic Phase Images

4 3D Motion Estimation 386

4.1 Displacement Estimates • 4.2 Model Fitting • 4.3 The Forward Map and Strain

5 Discussion 388

References 389

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