Deformable models for tagged MR images: reconstruction of two- and three-dimensional heart wall motion
- 17 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 169, 317-323
- https://doi.org/10.1109/bia.1994.315840
Abstract
Magnetic resonance (MR) tissue tagging allows non-invasive in vivo measurement of soft tissue deformation. Planes of magnetic saturation are created, orthogonal to the imaging plane, which form dark lines (stripes) on the image. These stripes deform with the tissue and may be tracked in order to reconstruct the time-varying deformation of the structure. The authors have developed a semiautomatic line tracking algorithm to track the stripes to sub-pixel resolution throughout the deformation, based on active contour models (snakes). Each tracked stripe point gives displacement information orthogonal to the original tagging plane, i.e. a one dimensional constraint on the motion. Data from several tagging and imaging planes in different orientations was combined using a deformable model of the LV wall. Two or three dimensional motion and deformation was then reconstructed by fitting the data constraints by linear least squares.Keywords
This publication has 11 references indexed in Scilit:
- Automatic tracking of SPAMM grid in MR imagesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Non-rigid heart wall motion using MR taggingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Energy-minimizing deformable grids for tracking tagged MR cardiac imagesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Validation of tagging with MR imaging to estimate material deformation.Radiology, 1993
- Three-dimensional motion and deformation of the heart wall: estimation with spatial modulation of magnetization--a model-based approach.Radiology, 1992
- A Fast algorithm for active contours and curvature estimationCVGIP: Image Understanding, 1992
- On active contour models and balloonsCVGIP: Image Understanding, 1991
- Heart wall motion: improved method of spatial modulation of magnetization for MR imaging.Radiology, 1989
- Human heart: tagging with MR imaging--a method for noninvasive assessment of myocardial motion.Radiology, 1988
- Snakes: Active contour modelsInternational Journal of Computer Vision, 1988