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Proceedings Paper

Image-based speckle tracking for tissue motion characterization in a deformable cardiovascular phantom
Author(s): R. Chan; R. Manzke; S. Dalal; D. Stanton; P. Chang; S. Settlemier; I. Salgo; F. Tournoux
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Paper Abstract

We present and validate image-based speckle-tracking calipers for quantification of tissue deformation and rotation in dynamic cardiovascular phantom models. Lagrangian strain was computed from the change in distance between caliper regions-of-interest (ROIs) positioned within the wall of a pulsatile phantom and compared with reference measurements derived from cardiac CT imaging. In a torsion phantom, rotational tissue excursion in a 2D plane was estimated and compared with reference values from CT-scan data. Tissue deformation and rotation measurements correlated well with their respective reference measurements. Our algorithm is capable of estimating strain and rotation from distinct tissue regions without requiring explicit cardiac border detection, a step which can be especially challenging in patients with poor acoustic windows.

Paper Details

Date Published: 13 March 2008
PDF: 7 pages
Proc. SPIE 6920, Medical Imaging 2008: Ultrasonic Imaging and Signal Processing, 69200U (13 March 2008); doi: 10.1117/12.770631
Show Author Affiliations
R. Chan, Philips Research North America (United States)
R. Manzke, Philips Research North America (United States)
S. Dalal, Philips Research North America (United States)
D. Stanton, Philips Research North America (United States)
P. Chang, Philips Medical Systems (United States)
S. Settlemier, Philips Medical Systems (United States)
I. Salgo, Philips Medical Systems (United States)
F. Tournoux, Massachusetts General Hospital (United States)
Harvard Medical School (United States)

Published in SPIE Proceedings Vol. 6920:
Medical Imaging 2008: Ultrasonic Imaging and Signal Processing
Stephen A. McAleavey; Jan D'hooge, Editor(s)

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