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Measured attenuation coefficients of the temporal bone in five human skulls at 1.03 and 2.00 MHz.
| Skull Number | Temporal bone attenuation coefficient at 1.03 MHz (Np/m) | Temporal bone attenuation coefficient at 2.00 MHz (Np/m) |
|---|---|---|
| 1 | 175 ± 37 | 558 ± 117 |
| 2 | 713 ± 143 | 1210 ± 242 |
| 3 | 216 ± 28 | 379 ± 49 |
| 4 | 255 ± 48 | 541 ± 103 |
| 5 | 154 ± 22 | 394 ± 55 |
