In what unit is pulse duration reported?

Pulse duration is the length of time that a pulse lasts, and it is a specific measurement of time. It is primarily reported in units of time that are suitable for the context in which ultrasound operates. While "seconds" is a time measurement, it is important to note that pulse duration is typically much shorter, often falling in the range of microseconds or even nanoseconds, depending on the frequency of the ultrasound.

In clinical ultrasound applications, pulse duration is most commonly measured in microseconds since ultrasound pulses are relatively short, and microseconds provide a more precise unit for these measurements. Therefore, while "seconds" could theoretically describe pulse duration, it does not reflect the common practice within the field, where microseconds is the preferred unit.

Thus, while pulse duration does indeed represent a time measurement, the most appropriate and commonly used units in the context of sonography and ultrasound physics are microseconds.