Davies SPI Review Questions with Complete Solutions (Latest 2025) artifact based on the interface patterns of scattered echoes - Correct Answers ✅acoustic speckle impedance increases with what two things? - Correct Answers ✅increased tissue density & increased propagation speed main advantage of using an intracavitary (transvag) probe? - Correct Answers ✅probe is closer to the area of interest, so a higher frequency can be used, resulting in superior spatial reso varying the excitation voltage to each element in the group used to form the ultrasound pulse is called? - Correct Answers ✅apodization a digital scan converter is another name for what system component? - Correct Answers ✅image memory propagation speed is lowest in what biological tissue? - Correct Answers ✅fat list the order of biological tissue sound travels through by
lowest to highest propagation speed: - Correct Answers
✅fat (lowest) liver 1 / 2
Davies SPI Review Questions with Complete Solutions (Latest 2025) blood muscle bone (highest) a rounded mass with irregular borders has a much slower prop speed than surrounding tissue. what sound-tissue interaction will be encountered as the US propagates through this interface?
- refraction
- reflection
- absorption
- scattering
- all of the above - Correct Answers ✅e. all of the above
- refraction bc of the oblique incidence (round surface)
- reflection bc the acoustic impedance is different (diff
- absorption bc that occurs as sound travels through tissue
- scattering bc of the irregular margins
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densities)