Which units are typically used to report frequency?

Frequency is a measure of the number of occurrences of a repeating event per unit of time. In the context of ultrasound and sonography, frequency refers to how many complete wave cycles pass a given point in one second. The standard unit for measuring frequency is Hertz (Hz), which represents one cycle per second. Therefore, the use of Hertz as the unit for reporting frequency directly aligns with its definition and application in both physics and medical imaging.

The other units mentioned do not adequately describe frequency. Decibels are a logarithmic unit used to express the ratio between two values, often related to intensity or power in sound waves rather than frequency itself. Units per hour suggest a rate of occurrence over time, but they do not correspond to the standard definition of frequency, which is typically per second. Grams per cubic centimeter is a unit of density, unrelated to the concept of frequency or wave cycles. Hence, the choice of Hertz as the correct unit for frequency is clear and valid in both scientific and clinical applications.