What characteristic does higher frequency ultrasound have regarding penetration?

Higher frequency ultrasound is characterized by less penetration compared to lower frequency ultrasound. This is due to the properties of sound waves; as frequency increases, the wavelength decreases. Higher frequency waves are absorbed more readily by tissues, which limits their ability to penetrate deeply.

In a practical context, higher frequency ultrasound is often used for superficial structures such as the skin or muscles, where detailed imaging is necessary but deep penetration is not required. This is in contrast to lower frequency ultrasound, which has a greater capacity to penetrate deeper into tissues, making it more suitable for examining internal structures.

Understanding this concept is essential for facial specialists as they select appropriate ultrasound frequencies based on the specific treatment area and desired depth of penetration.