Frequency analysis of ultrasonic echo intensities

What is it about?

The skeletal muscle echo intensity (EI) during ultrasound imaging has been investigated to evaluate the muscle quality. However, EI fluctuates according to the scanning conditions. The motor functions and ultrasound images of individuals were investigated and an EI frequency component was assessed for more reliable evaluations.

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Why is it important?

Muscle echo intensity and its frequency component were investigated. The elderly individuals had larger mean frequency values than did young. The mean frequency did not different between the superficial and deeper muscles. The mean frequency would be related to diffused adipose tissues in the muscle. The change in mean frequency could be directly related to the anatomical structure.