Low - frequency waves enable the imaging of deeper parts of the body; ultrahigh frequencies permit the study of surface organs such as the eyes and the layers of skin, perhaps assisting in the diagnosis of skin cancer.
Gelombang frekuensi rendah memungkinkan pencitraan bagian tubuh yang lebih dalam; frekuensi ultrasonik memungkinkan ditelitinya permukaan organ seperti mata dan lapisan kulit, barangkali untuk mendiagnosis kanker kulit.