SPI EXAM (DAVIES) EXAM QUESTIONS
AND ANSWERS 100% SOLVED (Newest 2025) Range ambiguity - Correct Answers ✅Reflecting structure is located deeper in position than that of of the depth of the imaging system Side lobes - Correct Answers ✅Linear type artifact created by a single element transducer; sound energy travels in a direction other than the beam's main axis Edge shadow - Correct Answers ✅Exhibits a hypo to anechoic band from the edge of a curved surface Multipath - Correct Answers ✅Some of the pulses of sound will travel directly to a reflector whereas some of them do not Shadow - Correct Answers ✅Anechoic region directly behind a structure that is high attenuation, thus deep reflectors (true structures) may not be visible in the image Grating lobes - Correct Answers ✅Created by array transducers; sound energy travels in a direction other than the main axis of the beam Comet Tail Artifact - Correct Answers ✅Related to reverberation artifact 1 / 2
SPI EXAM (DAVIES) EXAM QUESTIONS
AND ANSWERS 100% SOLVED (Newest 2025) What term describes the number of pulses that are used to determine the velocity along a color line of sight? - Correct Answers ✅Packet Size What would most likely result from increasing the transmit frequency of the Color Doppler? - Correct Answers ✅Improved sensitivity to flow Scattering - Correct Answers ✅Occurs when the sound strikes an irregular or rough surface that is small compared to the wavelength Specular reflection - Correct Answers ✅Occurs when the surface is smooth and large compared to the wavelength Diffraction - Correct Answers ✅Requires the sound to pass through a small aperture Refraction - Correct Answers ✅Occurs with oblique incidence and a change in propagation speeds at the interface The ability to differentiate between two regions having similar echogenicity, such as in this liver image with focal fatty
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