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. 2020 Nov 19;10:20166. doi: 10.1038/s41598-020-76754-3

Table 1.

Comparison of speed of sound (SOS) for muscle fat and cartilage, with known literature values54,63.

Tissue SOS QTUS 3D (SD) (m/s) SOS (SD) (m/s)
Vastus medialis 1573 (25.9) 1588.4 (21.6)
Fresh muscle (chicken) 1572.6 (14.6) 1588.4 (21.6)
Fat 1438.7 (20.5) 1440 (21.4)
Cartilage 1655.4 (14.6) 1660