CAIE A-Level Physics 24.1.3 Pulse-Echo Ultrasound Imaging
Practise extracting tissue-boundary depth from ultrasound pulse timing and internal-boundary information from reflected-pulse intensity.
- Syllabus
- 2028–2030
- Course
- Physics 9702
- Level
- A2
Exam points
- interpret the time between transmitted and reflected ultrasound pulses to determine boundary depth
- interpret reflected-pulse intensity to obtain information about an internal boundary
24.1.3—The reflection of pulses of ultrasound at boundaries between tissues can be question 1
[Maximum number: 3]
Explain how ultrasound pulses are used to obtain diagnostic information about internal body structures in medical diagnosis.
pulses are reflected (from boundaries)
B1
time between transmission and detection (of reflected pulse) gives the depth (of the boundary)
B1
intensity (of reflected pulse) gives information about the nature of the boundary
B1
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