Spatial pulse length has units of?

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Multiple Choice

Spatial pulse length has units of?

Explanation:
Spatial pulse length is the physical length of the ultrasound pulse in space, so its units are a distance. Since SPL equals the number of cycles in the pulse times the wavelength, and wavelength is a distance, SPL is inherently a length measurement. In practice, it’s expressed in millimeters. This is different from temporal pulse length, which has units of time, and mass has no relation to this concept.

Spatial pulse length is the physical length of the ultrasound pulse in space, so its units are a distance. Since SPL equals the number of cycles in the pulse times the wavelength, and wavelength is a distance, SPL is inherently a length measurement. In practice, it’s expressed in millimeters. This is different from temporal pulse length, which has units of time, and mass has no relation to this concept.

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