Table 1 The calculated Hounsfield units for bone
From: A criterion for the reliable use of MRI-only radiotherapy
Diagnostic group | Bone tissue | Electron density [g/cm3] | Calculated HU (age) |
|---|---|---|---|
HN | Skeleton-cranium (whole) | 1.61 (adult) | 971 |
Prostate | Skeleton-femur (whole) | 1.33 (30 years) | 349 (66.8 years*) |
1.22 (90 years) | |||
Pelvic | Skeleton-femur (whole) | 1.33 (30 years) | 356 (64.7 years*) |
1.22 (90 years) | |||
Vesica | Skeleton-femur (whole) | 1.33 (30 years) | 309 (78.8 years*) |
1.22 (90 years) |