Diagnostic ultrasound operates at sound frequencies between which values?

Diagnostic ultrasound predominantly operates at sound frequencies ranging from 1 to 20 MHz. This frequency range is essential for medical imaging as it provides a balance between resolution and tissue penetration. Higher frequencies, like those approaching 20 MHz, offer improved resolution and detail, making them ideal for imaging superficial structures or increasing specificity in applications such as musculoskeletal and vascular imaging.

Conversely, lower frequencies may penetrate deeper tissues, which is advantageous in examining larger organs or deeper structures, but they tend to produce less detailed images. Frequencies below 1 MHz are not suitable for diagnostic imaging, while those exceeding 20 MHz may result in diminished penetration ability, limiting their effectiveness for certain applications. Therefore, the specified range captures the functional frequencies used in various ultrasound imaging contexts effectively, supporting optimal diagnostic outcomes.