Introduction: A stand-alone and low-cost elastography technique has been developed using a single continuously scanning laser Doppler vibrometer.
Methods: This elastography technique is used to measure the propagation velocity of surface vibrations over superficial skeletal muscles to assess muscle stiffness.
Results: Systematic variations in propagation velocity depending on the contraction level and joint position of the biceps brachii were demonstrated in 10 subjects.
Conclusions: This technique may assist clinicians in characterizing muscle stiffness (or tone) changes due to neuromuscular disorders.
Keywords: elastography; laser vibrometry; muscle stiffness; skeletal muscles; surface waves.
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