Estimation of Cardiac Motion Using Magnetic Resonance Imaging

This paper presents the application of the methods proposed in [1] to estimate displacements fields from two dimensional ultrasound sequences of the heart using spatio‐temporal non‐rigid registration. The main topic of our work is the application of these techniques to MR sequences, and validation of the obtained cardiac parameters: displacement, velocity and strain fields. The methods proposed are adjusted and validated on synthetic sequences that simulate the cardiac motion on MR sequences. These sequences provide a good framework to estimate the accuracy of the algorithms and to adjust the parameters to fulfil the problem requirements. Finally we applied the techniques to the regional analysis of the left ventricle on a set of MR sequences to illustrate the clinical applicability of the method proposed.