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Bone quality measurement. A. Total volume (TV) is the volume of the entire figure, outlined by the bold black line; B. Bone volume (BV) is the volume of the grey area; C. Bone surface is the surface area within the double lines; D. Trabecular thickness (TbTh) is the distance between the two arrows; E. Trabecular number (TbN) is the number of trabecular structures in the dashed line; F. Trabecular star volume (Vtr) is indicated by the radial arrows.
