Figure 5 | Scientific Reports

Figure 5

From: Bone mineral density measurements in vertebral specimens and phantoms using dual-layer spectral computed tomography

Figure 5

Characteristic lines of HA CT numbers of monoenergetic 50 keV and 200 keV images. Blue dots indicate pixels values within the four known concentrations of the HA phantom. The blue line is the corresponding regression line of pixels. For comparison, the dashed line illustrates the behaviour of materials with comparable CT numbers in low and high keV images, respectively (i.e., materials with low atomic numbers).

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