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Clinical comparison of a novel breast DXA technique to mammographic density
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10.1118/1.2193691
/content/aapm/journal/medphys/33/5/10.1118/1.2193691
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/33/5/10.1118/1.2193691

Figures

Image of FIG. 1.
FIG. 1.

Sequence of positioning for prone pendulous DXA breast imaging.

Image of FIG. 2.
FIG. 2.

Density step phantom (N17NS) used to calibrate the DXA device to units of glandular density and to perform a quality control. This phantom is composed by seven materials with x-ray absorption characteristics equivalent to 0,30,40,45,50,60,70, and glandular cladded by two water equivalent compartments.

Image of FIG. 3.
FIG. 3.

DXA calibration phantoms designed in UCSF; picture (left) and low energy attenuation (right).

Image of FIG. 4.
FIG. 4.

DXA calibration graph (for PA scans). The dots represent calibration measurements and the grid is composed of iso thickness and iso glandular curves computed fro Eqs. (1) and (2).

Image of FIG. 5.
FIG. 5.

Material image of the DXA calibration phantoms shown in Fig. 3. The image gray scale is in units. Note that the gray scale values are proportional to percent fibroglandular density through the thickness range from 0 to .

Image of FIG. 6.
FIG. 6.

Examples of examination of the same patient: mammographic density (left) and DXA (right) analysis. For this example and .

Image of FIG. 7.
FIG. 7.

Left/right breast correlation.

Image of FIG. 8.
FIG. 8.

Correlation between and .

Tables

Generic image for table
TABLE I.

Repeatability results using the N17NS phantom for prone pendulous positioning.

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/content/aapm/journal/medphys/33/5/10.1118/1.2193691
2006-04-28
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Clinical comparison of a novel breast DXA technique to mammographic density
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/33/5/10.1118/1.2193691
10.1118/1.2193691
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