1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Group velocity, phase velocity, and dispersion in human calcaneus in vivo
Rent:
Rent this article for
USD
10.1121/1.2697436
/content/asa/journal/jasa/121/4/10.1121/1.2697436
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/4/10.1121/1.2697436

Figures

Image of FIG. 1.
FIG. 1.

The stratified model represents a composite medium as a one-dimensional structure of alternating layers of two media with density and Lamé constants and .

Image of FIG. 2.
FIG. 2.

Measurements of frequency-dependent phase velocity on polycarbonate plate obtained using (1) the GE Achilles Insight, and (2) Panametrics transducers in a water tank.

Image of FIG. 3.
FIG. 3.

Time domain vs frequency domain measurements of group velocity in 73 women.

Image of FIG. 4.
FIG. 4.

Phase velocity vs group velocity in 73 women.

Image of FIG. 5.
FIG. 5.

Average frequency-dependent phase velocity in 73 women. Error bars denote standard errors.

Image of FIG. 6.
FIG. 6.

Stratified model predictions for phase velocity assuming four different sets of material parameters for bone trabeculae.

Image of FIG. 7.
FIG. 7.

Stratified-model predictions for phase velocity in cancellous bone based on two options for the fluid filler: water (in vitro experiments) and marrow (in vivo experiments).

Image of FIG. 8.
FIG. 8.

Stratified-model predictions for phase velocity in cancellous bone as a function of ratio of bone volume to total volume (BV/TV). The values for BV/TV shown correspond to the mean one standard deviation for BV/TV reported in human calcaneus (Ulrich et al., 1999).

Tables

Generic image for table
TABLE I.

Demographic information for clinical study.

Generic image for table
TABLE II.

Estimates of dispersion rate in human calcaneus from Wear (2000), Nicholson et al. (1996, Table 1), Strelitzki and Evans (1996, Table 2), Droin et al. (1998, Table 1), and the present paper.

Generic image for table
TABLE III.

Material and structural properties used as inputs for the stratified model. Material parameters for bone were taken from Cowin (1989). Structural parameters for bone were taken from Ulrich et al. (1999). Material parameters for water and marrow (i.e., fat) were taken from the material properties library WAVE 2000 PRO software (Cyberlogic, New York) and Kaye and Laby, 1973.

Loading

Article metrics loading...

/content/asa/journal/jasa/121/4/10.1121/1.2697436
2007-04-01
2014-04-19
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Group velocity, phase velocity, and dispersion in human calcaneus in vivo
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/4/10.1121/1.2697436
10.1121/1.2697436
SEARCH_EXPAND_ITEM