Theoretical Prediction of Ultrasound Elastography for Detection of Early Osteoarthritis
Joint Authors
Wang, Lan
Chen, Shigao
An, Kai-Nan
Luo, Zong-Ping
Yang, Huilin
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-05
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Ultrasound elastography could be used as a new noninvasive technique for detecting early osteoarthritis.
As the first critical step, this study theoretically predicted the excitation power and the measurement errors in detecting cartilage detect.
A finite element model was used to simulate wave propagation of elastography in the cartilage.
The wave was produced by a force F, and the wave speed C was calculated.
The normal cartilage model was used to define the relationship between the wave speed and elastic modulus.
Various stiffness values were simulated.
F=10 N with a duration of 0.5 ms was required for having measurable deformation (10 μm) at the distal site.
The deformation had a significant rise when the wave crossed the defect.
The relationship between the wave speed and elastic parameters was found as C=1.57×E/2×ρ1+μ1/2, where E was the elastic modulus, μ was Poisson’s ratio, and ρ was the density.
For the simulated defect with an elastic modulus of 7 MPa which was slightly stiffer than the normal cartilage, the measurement error was 0.1 MPa.
The results suggested that, given the simulated conditions, this new technique could be used to detect the defect in early osteoarthritis.
American Psychological Association (APA)
Wang, Lan& Chen, Shigao& An, Kai-Nan& Yang, Huilin& Luo, Zong-Ping. 2013. Theoretical Prediction of Ultrasound Elastography for Detection of Early Osteoarthritis. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1033060
Modern Language Association (MLA)
Wang, Lan…[et al.]. Theoretical Prediction of Ultrasound Elastography for Detection of Early Osteoarthritis. The Scientific World Journal No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-1033060
American Medical Association (AMA)
Wang, Lan& Chen, Shigao& An, Kai-Nan& Yang, Huilin& Luo, Zong-Ping. Theoretical Prediction of Ultrasound Elastography for Detection of Early Osteoarthritis. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1033060
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1033060