Tissue harmonics are created during which process?

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Multiple Choice

Tissue harmonics are created during which process?

Explanation:
Tissue harmonics come from the nonlinear way sound travels through tissue. As the ultrasound wave propagates, the tissue’s response distorts the waveform, creating higher-frequency components that are multiples of the fundamental frequency. This harmonic production happens during transmission (propagation) in the tissue, before most of the echoes are formed at boundaries. Absorption simply reduces amplitude, and scattering redistributes energy; neither creates new harmonic frequencies. So, tissue harmonics are produced during transmission as the wave moves through tissue.

Tissue harmonics come from the nonlinear way sound travels through tissue. As the ultrasound wave propagates, the tissue’s response distorts the waveform, creating higher-frequency components that are multiples of the fundamental frequency. This harmonic production happens during transmission (propagation) in the tissue, before most of the echoes are formed at boundaries. Absorption simply reduces amplitude, and scattering redistributes energy; neither creates new harmonic frequencies. So, tissue harmonics are produced during transmission as the wave moves through tissue.

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