How are sound waves in ultrasound described?

Sound waves in ultrasound are described by their frequency in hertz (Hz) and wavelength. Frequency indicates how many cycles of the sound wave occur in one second, which is crucial for determining the characteristics of the ultrasound. Higher frequencies provide better resolution for imaging, allowing for finer detail to be captured in the ultrasound images. Wavelength, which is inversely related to frequency, affects how the sound wave interacts with different tissues in the body.

Understanding frequency and wavelength is essential in radiology, particularly in ultrasound technology, as they directly influence the depth of penetration and the quality of the images produced. Higher frequency sound waves, while offering better resolution, do not penetrate as deeply as lower frequency waves. Thus, when selecting the appropriate settings for an ultrasound exam, the interplay between frequency and wavelength is a key factor in ensuring effective imaging.