Frequency-Based Nonrigid Motion Analysis: Application to Four Dimensional Medical Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
Dense Non-Rigid Motion Estimation in Sequencesof Medical Images Using Differential Constraints
International Journal of Computer Vision
International Journal of Computer Vision
Four-Dimensional LV Tissue Tracking from Tagged MRI with a 4D B-Spline Model
IPMI '99 Proceedings of the 16th International Conference on Information Processing in Medical Imaging
Recovery of Soft Tissue Object Deformation from 3D Image Sequences Using Biomechanical Models
IPMI '99 Proceedings of the 16th International Conference on Information Processing in Medical Imaging
Deformable B-Solids and Implicit Snakes for Localization and Tracking of SPAMM MRI-Data
MMBIA '96 Proceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis (MMBIA '96)
MMBIA '96 Proceedings of the 1996 Workshop on Mathematical Methods in Biomedical Image Analysis (MMBIA '96)
LV Motion and Strain Computation from tMRI Based on Meshless Deformable Models
MICCAI '08 Proceedings of the 11th international conference on Medical Image Computing and Computer-Assisted Intervention - Part I
Reconstruction of detailed left ventricle motion from TMRI using deformable models
FIMH'07 Proceedings of the 4th international conference on Functional imaging and modeling of the heart
Dense myocardium deformation estimation for 2d tagged MRI
FIMH'05 Proceedings of the Third international conference on Functional Imaging and Modeling of the Heart
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We present a new method for analyzing the 3D motion of the heart's left ventricle (LV) from tagged magnetic resonance imaging (MRI) data. Our technique is based on the development of a new class of volumetric physics-based deformable models whose parameters are functions and can capture the local shape variation of an object. These parameters require no complex post-processing in order to be used by a physician. These volumetric models allow the accurate estimation of the shape and motion of the inner and outer walls of the LV as well as within the walls. We also present a new technique for calculating forces exerted by tagged MRI data to material points of the deformable model. Furthermore, by plotting the variations over time of the extracted LV model parameters from normal heart data we are able to quantitatively analyze and compare the epicardial and endocardial motion.