Table 1.
Error in derived structural parameters induced by reduced SNR with resolution fixed at 126×126×396 μm3. Mean magnitude of error in parameters are shown before and after corrections were applied and are relative to parameters calculated from noiseless images (SNR=∞).
| SNR | 6 | 9 | 12 | |||
|---|---|---|---|---|---|---|
| Before | After | Before | After | Before | After | |
| BV∕TV (%) | 25.1 | 2.9 | 5.6 | 1.0 | 2.6 | 0.6 |
| Skeleton density (%) | 102.2 | 10.3 | 23.7 | 2.9 | 11.8 | 2.1 |
| Surface density (%) | 36.8 | 6.0 | 10.0 | 1.9 | 5.6 | 1.1 |
| Curve count (%) | 463.0 | 21.9 | 108.6 | 7.4 | 47.4 | 3.6 |
| Surface-to-curve ratio (%) | 73.6 | 24.2 | 45.9 | 9.1 | 27.2 | 5.5 |