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Hyoid-mandible pairs segmented with different HU thresholds: standard bone (global) threshold (left) and hyoid-specific threshold (right). The hyoid bone has a lower Hounsfield CT density than the mandible on CT. The typical threshold parameters for bone of the mandible, excludes significant portions of the hyoid bone, particularly the cornua (left image). The hyoid-specific threshold depends on structure size/age.
