Table 1 Definitions and measurement steps of radiomorphometric parameters using ImageJ software
Parameters | Abbreviation | Definition | Measurement steps |
|---|---|---|---|
Bone volume fraction | BV/TV | The proportion of bone volume to the total volume within the region of interest (ROI) | Binarized ROI was analyzed using the Area Fraction plugin |
Trabecular thickness | Tb.Th | The mean thickness of individual trabeculae within the selected region | Binarized ROI was analyzed using the Thickness feature of the BoneJ plugin |
Trabecular separation | Tb.Sp | The mean distance between adjacent trabeculae in the selected region | Binarized ROI was analyzed using the Thickness feature of the BoneJ plugin |
Cortical area | Ct.Ar | The area of the cortical bone in the selected region | Measured using the ‘Slice Geometry’ command in BoneJ, focusing on the upper border of the reference groove |
Cortical thickness | Ct.Th | The average thickness of the cortical bone in the analyzed region | Measured using the ‘Slice Geometry’ command of BoneJ after aligning the cortical bone axis perpendicular to the floor |