Title :
Calculation of regional ventricular wall strains using magnetic resonance imaging tissue-tagging
Author :
Moulton, Michael J. ; Creswell, Lawrence L. ; Downing, Stephen W. ; Actis, Ricardo L. ; Szabó, Barna A. ; Vannier, Michael W. ; Pasque, Michael K.
Author_Institution :
Dept. of Surg., Washington Univ., St. Louis, MO, USA
Abstract :
An algorithm is described to compute continuous, transmural distributions of finite strains from tagged magnetic resonance (MR) images of the heart. Validation is performed by constructing a finite element (FE) model from the undeformed image and simulating complex deformations of the undeformed tags and intersections. Strains are calculated from these deformations by the algorithm and are compared with the FE-predicted strains
Keywords :
biomechanics; biomedical NMR; cardiology; finite element analysis; medical image processing; cardiac biomechanics; complex deformations simulation; continuous transmural distributions; finite element model; finite strains; heart images; intersections; magnetic resonance imaging tissue-tagging; medical diagnostic imaging; regional ventricular wall strains calculation; undeformed image; undeformed tags; Capacitive sensors; Computational modeling; Deformable models; Distributed computing; Finite element methods; Heart; Magnetic field induced strain; Magnetic resonance; Magnetic resonance imaging; Myocardium; Polynomials; Strain measurement; Surgery; Ultrasonic variables measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.411909
