Theoretical and experimental study of attenuation in cancellous bone

This paper introduces a new method called photoacoustic differential attenuation spectrum (PA-DAS) to study cancellous bone, which is important for diagnosing osteoporosis. The method separates how sound travels through the bone from the original sound source, allowing for a more detailed analysis of bone structure and its changes due to osteoporosis. The study combines theoretical calculations with experiments on rabbits to show that PA-DAS can effectively distinguish between healthy and osteoporotic bone.

• 1
  The photoacoustic differential attenuation spectrum (PA-DAS) method can effectively differentiate osteoporotic bone from healthy bone.
• 2
  The PA-DAS slope of the osteoporotic group is significantly lower compared with the normal group (p < 0.01).
• 3
  Porosity of cancellous bone can be evaluated by fast longitude wave attenuation at different frequencies.