Journal article
ESTIMATION OF THE TRANSVERSE STRAIN TENSOR IN THE ARTERIAL WALL USING IVUS IMAGE REGISTRATION
Ultrasound in medicine & biology, v 34(11), pp 1832-1845
01 Nov 2008
PMID: 18620800
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Intravascular ultrasound (IVUS) elastography is an imaging technique that obtains the local mechanical properties of the artery wall and atherosclerotic plaques through strain measurements using IVUS. Knowledge of these mechanical properties may provide crucial information that can help in estimating plaque composition and its vulnerability. Here, we present a new method to estimate the transverse strain tensor of the arterial wall based on nonrigid image registration using IVUS images. This method registers a pair of images acquired at a vessel site under different levels of luminal pressure. The 2-D displacement field in the vessel cross-section is estimated from image registration; then the displacement field is used to calculate the 2-D local strain tensor. From the strain tensor, the strain in any direction in the cross-section can be obtained; here, the radial and circumferential strain distributions are presented. This strain estimation method has been validated with synthetic motion IVUS images and evaluated using the IVUS images of a polyvinyl alcohol cryogel phantom. The accuracy of the estimated strain and the ability of the method to overcome IVUS system noise are demonstrated. (E-mail: mhfriedm@duke.edu) (C) 2008 World Federation for Ultrasound in Medicine & Biology.
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Details
- Title
- ESTIMATION OF THE TRANSVERSE STRAIN TENSOR IN THE ARTERIAL WALL USING IVUS IMAGE REGISTRATION
- Creators
- Yun Liang - Duke UniversityHui Zhu - Duke UniversityMorton H. Friedman - Duke University
- Publication Details
- Ultrasound in medicine & biology, v 34(11), pp 1832-1845
- Publisher
- Elsevier
- Number of pages
- 14
- Grant note
- R01HL058856 / NATIONAL HEART, LUNG, AND BLOOD INSTITUTE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Heart Lung & Blood Institute (NHLBI) HL058856 / NIH; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Radiation Oncology (and Nuclear Medicine)
- Web of Science ID
- WOS:000260611000015
- Scopus ID
- 2-s2.0-54049145853
- Other Identifier
- 991021897484104721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Acoustics
- Radiology, Nuclear Medicine & Medical Imaging