Table 1.
List of MDCT-derived trabecular bone (Tb) and cortical bone (Cb) measures examined in this study. The nomenclature of Tb measures used by Bouxsein et al. [76] and Chen et al. [49] is followed here wherever possible.
| Parameter (unit) | Description |
|---|---|
| Trabecular bone | |
| Tb.vBMD (mg/cc) | Volumetric trabecular BMD |
| Tb.tBMD (mg/cc) | Volumetric trabecular BMD contributed by transverse trabeculae [54] |
| Tb.pBMD (mg/cc) | Volumetric trabecular BMD contributed by trabecular plates [54] |
| Tb.NA (cm2/cm3) | Density of trabecular network area, i.e., the area of medial surface of segmented Tb microstructure |
| Tb.PW (μm) | Mean Tb plate-width [54] |
| Tb.Th (μm) | Mean trabecular thickness [56] |
| Tb.Sp (μm) | Mean trabecular separation, i.e., the space between individual trabeculae [56] |
| Cortical bone | |
| Cb.Poro (no unit) | Mean cortical porosity computed by analyzing BMD over the Cb region [51] |
| Cb.Th (μm ) | Mean cortical thickness computed using a Cb segmentation algorithm [51] |
Cb: cortical bone; Tb: trabecular bone; BMD: bone mineral density