Title :
6G-2 A Solution Approach for Solving the Inverse Elasticity Problem for Heterogeneous Atherosclerotic Coronary Plaques
Author :
Baldewsing, Radj A. ; Mastik, Frits ; Schaar, Johannes A. ; Van der Steen, Antonius F W
Author_Institution :
Biomed. Eng., Erasmus Med. Center, Rotterdam
Abstract :
A solution approach is described for solving the inverse elasticity problem for arbitrary atherosclerotic plaques. It extends a previous Young\´s modulus (YM) reconstruction framework (chapters 4 & 6 in [Baldewsing, RA, 2006]) that was mainly suited for reconstruction of thin-cap fibroatheromas (i.e., plaques with a single large lipid pool covered by a single thin fibrous cap). The following extensions were made: (i) Use of a "corrected" radial strain elastogram, (ii) use of this corrected elastogram to define initial YM-distributions and (iii) use of a compounding procedure to obtain a heterogeneous YM-distribution from individual YM-reconstructions
Keywords :
Young´s modulus; biomechanics; biomedical ultrasonics; cardiology; elasticity; inverse problems; Young´s modulus reconstruction framework; compounding procedure; corrected radial strain elastogram; heterogeneous YM distribution; heterogeneous atherosclerotic coronary plaques; inverse elasticity problem; Biomedical measurements; Capacitive sensors; Catheters; Elasticity; Finite element methods; Image reconstruction; Lipidomics; Mathematical model; Position measurement; Strain measurement;
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2006.193
