This book constitutes the refereed proceedings of the 7th International Conference on Functional Imaging and Modeling of the Heart, held in London, UK, in June 2013. The 58 revised full papers were carefully reviewed and selected from numerous initial submissions. The focus of the papers is on following topics: image driven modeling, biophysical modeling, image analysis, biophysical modeling, cardiac imaging, parameter estimation, modeling methods, and biomedical engineering.Image Driven Modeling.- Fusion of Local Activation Time Maps and Image Data to Personalize Anatomical Atrial Models.- Initial Experience with a Dynamic Imaging-Derived Immersed Boundary Model of Human Left Ventricle.- 2D Intracardiac Flow Estimation by Combining Speckle Tracking with Navier-Stokes Based Regularization: A Study with Dynamic Kernels.- Biophysical Modeling.- A Computational Bilayer Surface Model of Human Atria.- The Effect of Active Cross-Fiber Stress on Shear-Induced Myofiber Reorientation.- Effect of Fibre Orientation Optimisation in an Electromechanical Model of Left Ventricular Contraction in Rat.- Comparison of Changes in Effective Electrical Size with Activation Rate between Small Mammalian and Human Ventricular Models.- Image Analysis.- Detecting Rat Heart Myocardial Fiber Directions in X-ray Microtomography Using Coherence-Enhancing Diffusion Filtering.- Fast Fully Automatic Segmentation of the Myocardium in 2D Cine MR Images.- Cardiac Microstructure Estimation from Multi-photon Confocal Microscopy Images.- Atlas Construction for Cardiac Velocity Profiles Segmentation Using a Lumped Computational Model of Circulatory System.- Similarity Retrieval of Angiogram Images BASED on a Flexible Shape Model.- Biophysical Modeling.- Fast Simulation of Mitral Annuloplasty for Surgical Planning.- Effects of Anodal Cardiac Stimulation on Vm and Ca2+ i Distributions:.- A Bidomain Study.- Understanding Prenatal Brain Sparing by Flow Redistribution. Based on a Lumped Model of the Fetal Circl#,