What is the velocity of an ultrasound wave in bone?

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Multiple Choice

What is the velocity of an ultrasound wave in bone?

Explanation:
Ultrasound speed is set by how stiff and dense a material is—the stiffer and denser the medium, the faster the wave travels. Bone, especially cortical bone, is extremely rigid and dense, so ultrasound moves through it very quickly, around four thousand meters per second. That aligns with roughly 4080 m/s, making it the best match for bone. In contrast, air is very slow (about 343 m/s) and soft tissues are much slower than bone (roughly 1540 m/s). So the other numbers don’t fit bone’s properties as well. Exact values can vary a bit with bone type and measurement method, but around 4,000 m/s is the typical ballpark for cortical bone.

Ultrasound speed is set by how stiff and dense a material is—the stiffer and denser the medium, the faster the wave travels. Bone, especially cortical bone, is extremely rigid and dense, so ultrasound moves through it very quickly, around four thousand meters per second. That aligns with roughly 4080 m/s, making it the best match for bone.

In contrast, air is very slow (about 343 m/s) and soft tissues are much slower than bone (roughly 1540 m/s). So the other numbers don’t fit bone’s properties as well. Exact values can vary a bit with bone type and measurement method, but around 4,000 m/s is the typical ballpark for cortical bone.

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