How does the ultrasound system convert sound waves into images?

The ultrasound system converts sound waves into images primarily by utilizing a transducer that emits and receives sound waves. The transducer plays a pivotal role in the whole ultrasound imaging process. When it emits sound waves, these waves travel through the body and bounce back upon encountering different tissues, creating echoes.

The transducer then detects these returning echoes and converts the mechanical energy of the sound waves into electrical signals. These electrical signals are then processed to create an image. This process allows for visualization of tissues in real-time, providing valuable information for medical diagnosis.

Other options describe different aspects of imaging or signal processing that are not the primary function of ultrasound systems. Digital signal processing algorithms, for instance, are essential for enhancing and interpreting the received signals but do not independently convert the sound waves into images. Filtering sound waves through a liquid medium does not accurately represent the functioning of ultrasound imaging since the medium (usually tissue, not a liquid) interacts with sound differently. Lastly, magnetic resonance technology pertains to MRI, not ultrasound, which relies solely on sound waves rather than magnetic fields.