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.
Chord-based versus voxel-based methods of electron transport in the skeletal tissues
Rent:
Rent this article for
USD
10.1118/1.2040712
/content/aapm/journal/medphys/32/10/10.1118/1.2040712
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/32/10/10.1118/1.2040712

Figures

Image of FIG. 1.
FIG. 1.

Representative vertebral images used in the voxel-based transport model. A reconstruction of a microCT image of spongiosa is given as well as a transverse slice through the data set showing bone trabecula (black) and bone marrow (white).

Image of FIG. 2.
FIG. 2.

Electron absorbed fractions to the active bone marrow within the (a) lumbar vertebra, (b) cervical vertebra, (c) ilium, and (d) cranium of the UF male. Two simulation methods are compared: voxel-based (solid lines) and chord-based (dashed lines) simulations, along with their respective convergence values.

Image of FIG. 3.
FIG. 3.

Electron absorbed fractions the trabecular endosteum within the (a) ilium and (b) ribs of the UF male. Two simulation methods are compared: voxel-based (solid lines) and chord-based (dashed lines) simulations, along with their respective convergence values.

Image of FIG. 4.
FIG. 4.

Illustration of external (-random) chord lengths traversing a spherical marrow cavity lined with a endosteal layer. Large marrow cavity chords are associated with small endosteal chords ( and ) and vice versa.

Tables

Generic image for table
TABLE I.

Acronyms and terms used in the present study.

Generic image for table
TABLE II.

Mean values of trabecular and marrow cavity chord lengths as given by the present UF study and those published from the University of Leeds Ref. 12. Values of mean chord lengths across the endosteal layer and the marrow space (which in combination define the marrow cavity) are shown as well based upon the CBIST algorithm presented in this study. Values for source-independent absorbed fractions at high electron energies (convergence limits) are given for TBE, TMS, and TBV targets in both the Leeds and UF bone sites. At the bottom of the table, corresponding values of convergence limits under VBIST simulations are shown.

Loading

Article metrics loading...

/content/aapm/journal/medphys/32/10/10.1118/1.2040712
2005-09-29
2014-04-16
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Chord-based versus voxel-based methods of electron transport in the skeletal tissues
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/32/10/10.1118/1.2040712
10.1118/1.2040712
SEARCH_EXPAND_ITEM