The K-Zone: Biophysical data tables: Hounsfield scale
This table lists the approximate values of radioopacities of
common tissues measured on the Hounsfield scale.
| Substance | Approx. value |
|---|
| Bone | 80-1000 |
| Calcification | 80-1000 |
| Congealed blood | 56-76 |
| Grey matter | 36-46 |
| White matter | 22-32 |
| Water | 0 |
| Fat | -100 |
| Air | -1000 |
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