1. Explain the principle of ultrasound scanning and how it can be used to produce 2D images of tissues e.g. baby's tissue in a mother's womb.
1. Explain the principle of ultrasound scanning and how it can be used to produce 2D images of tissues e.g. baby's tissue in a mother's womb.
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Transcribed Image Text:TAQ 3
Assessment criterion 2.1
1. Explain the principle of ultrasound scanning and how it can be
used to produce 2D images of tissues e.g. baby's tissue in a
mother's womb.
2. Calculate the fraction of reflected ultrasound energy when
ultrasound waves cross from soft tissue into fat if the acoustic
impedance for soft tissue is 1.60 x 106 kg m-2 s-1 and for fat has
the value 1.40 x 106 kg m-²s-1.
3. Calculate the diameter of a baby's head if there is a time delay of
85 microseconds between receiving pulses from either side of the
skull, and the speed of ultrasound can be assumed to be 1250
m/s.
4. Use the example above to discuss the applications, benefits and
limitations of ultra-sonography techniques. You will need to
consider issues such as cost, safety and image quality.
WORD COUNT:
Question 1– 250 words.
Question 2- no word count.
Question 3- no word count.
Question 4- 250 words.
Total – 500 words
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