What is the measurement for speed in Speed of Sound (SOS) in bone?

• A. Feet per second (ft/s)
• B. Meters per second (m/s)
• C. Centimeters per second (cm/s)
• D. Kilometers per hour (km/h)

Answer: (B)

The speed of sound (SOS) in bone is typically measured in meters per second (m/s). This unit is part of the International System of Units (SI), which is widely used in scientific measurements, including medical imaging and bone densitometry. The use of meters per second allows for precise and standardized comparison of the speed of sound in different materials, including bone.

In the context of bone densitometry, measuring the SOS is important as it correlates with the density and structural integrity of bone. Accurate measurements in m/s provide healthcare professionals with the necessary information to assess bone health and potential risks for conditions like osteoporosis.

Using meters per second also facilitates ease of calculations involved in further analysis, such as determining the elastic properties of bone, which are critical in understanding bone strength and resilience.