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Estimated sound speed values for different parameterized sound speed models. For models with Q < 7, the estimated sound speed values represent effective sound speeds across several different tissue types.
| Water | Bulk tissue | Bone | Kidney | Liver | Pancreas | Spleen | |
|---|---|---|---|---|---|---|---|
| True | 1.480 | 1.540 | 3.198 | 1.560 | 1.578 | 1.591 | 1.567 |
| Q = 1 | 1.495 | – | – | – | – | – | – |
| Q = 2 | 1.481 | 1.555 | – | – | – | – | – |
| Q = 3 | 1.480 | 1.555 | 3.171 | – | – | – | – |
| Q = 7 | 1.480 | 1.540 | 3.258 | 1.558 | 1.578 | 1.588 | 1.566 |
