Which ultrasound frequency range is typically used for abdominal imaging?

The frequency range of 2 to 5 MHz is commonly used for abdominal imaging because it strikes a balance between adequate penetration depth and resolution. Lower frequencies, such as 1 to 2 MHz, while they penetrate deeper tissues, do not provide the necessary resolution for detailed imaging of abdominal organs. Higher frequencies, like 5 to 10 MHz and 10 to 15 MHz, offer better resolution, but their ability to penetrate deeper tissues is limited, making them less suitable for abdominal examinations where deeper structures are often involved. The 2 to 5 MHz range provides sufficient detail to visualize organs such as the liver, kidneys, and pancreas while still penetrating the tissue adequately to assess deeper structures. This makes it the optimal choice for routine abdominal sonography.