Scattering refers to what phenomenon in ultrasound imaging?

Scattering in ultrasound imaging refers to the redirection of sound waves in multiple directions when they encounter small structures or irregularities in the medium through which they are traveling. This phenomenon occurs because the scattered echoes provide important information about the tissues being examined, especially when dealing with heterogeneous tissues like a liver or kidney. The scattering of sound helps to create a more detailed image by enhancing the contrast between different types of tissues, which is crucial for accurate diagnosis.

In the context of ultrasound, scattering is particularly beneficial because it allows for the detection of smaller features that might not otherwise be captured through processes like reflection or absorption. Scattering is influenced by factors such as frequency and the size of the structures involved, with higher frequencies usually resulting in greater scattering, thus leading to improved imaging of fine details.