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Single x-ray transmission system for bone mineral density determination
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View: Figures


Image of FIG. 1.
FIG. 1.

The SXA system: (a) Digital x-ray source, (b) x-ray image sensor, and (c) cow femur samples.

Image of FIG. 2.
FIG. 2.

Diagram of the SXA system and details of the x-ray image sensor connected to the computer.

Image of FIG. 3.
FIG. 3.

Digitals radiographies of the samples of cow bone taken at different exposition times.

Image of FIG. 4.
FIG. 4.

(a) The detector working region as a function of the exposure time. (b) The transmittance curves for bone samples at different exposition times as a function of the thickness.

Image of FIG. 5.
FIG. 5.

Relationship between density per unit of area calculated by means of Eq. (7) considering a ROI of 0.1 × 0.1 cm2, and the density per unit of area measured by means of gravimetric method for different thickness at 0.158 s from cow bone samples.

Image of FIG. 6.
FIG. 6.

Radiographies of left femur from female Wistar rats taken at 0.158 s for different ages.

Image of FIG. 7.
FIG. 7.

Relationship of densities per unit of area as a function of age obtained from radiographies of rats considering a ROI of 0.1 × 0.1 cm2.


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Scitation: Single x-ray transmission system for bone mineral density determination