Estimation of Arterial Wall Strain Based on IVUS Image Registration

Author

Liang, Yun ; Oakeson, Kevin D. ; Zhu, Hui ; Friedman, Morton H.

Author_Institution

Dept. of Biomed. Eng., Duke Univ., Durham, NC

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

3218

Lastpage

3221

Abstract

In this study, we propose a method to estimate arterial wall strain using intravascular ultrasound (IVUS) images. The method is based on a nonrigid image registration algorithm, which represents the displacement field by cubic B-splines, and incorporates smoothness and incompressibility constraints. The 2D displacement field is then used to calculate the local strain tensors. With the 2D strain tensors, both radial and circumferential strain distributions can be obtained, and color-coded for display. The algorithm has been evaluated with synthetic motion IVUS images and phantom IVUS images under two luminal pressures

Keywords

biomechanics; biomedical ultrasonics; blood vessels; cardiovascular system; image colour analysis; image motion analysis; image registration; medical image processing; phantoms; splines (mathematics); tensors; 2D displacement field; 2D strain tensors; arterial wall strain estimation; circumferential strain distributions; color coding; cubic B-splines; intravascular ultrasound images; luminal pressures; nonrigid image registration algorithm; phantom; radial strain distributions; synthetic motion IVUS images; Arteries; Capacitive sensors; Cost function; Geometry; Image registration; Imaging phantoms; Motion estimation; Strain measurement; Tensile stress; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.260038

Filename

4462482