Table 1.
Approximate tissue CT numbers obtained from typical patient head scans using a diagnostic CT scanner (General Electric, Revolution) with 0.625 mm slice thickness, 0.39 mm pixels, 120 kV tube potential, reconstructed with a standard head filter
| Tissue | Desired HU | Zeff in Statkiewicz-Sherer et al17 |
|---|---|---|
| Bone (skull) | 1500 | 13.8 |
| Soft tissue (fat) | −100 | 6.4 |
| Soft tissue (muscle) | 60 | 7.4 |
| Intervertebral disc | 100 | N/A |
| TMJ disc | 100 | N/A |
HU, Hounsfield unit; Zeff, effective atomic number; TMJ, temporomandibular joint.
Effective atomic numbers are from Statkiewicz-Sherer.17