Suppose that you are a sonographer using diagnostic ultrasound to investigate th

Question

Suppose that you are a sonographer using diagnostic ultrasound to investigate the various structures in a certain region of the human body. From your previous training you know that the average speed of diagnostic ultrasound in soft tissue is 1.54 millimeter/microsecond. The images show that there is a small volume in the studied specimen where the speed of ultrasound seems to be significantly higher, approximately 2.87 millimeter/microsecond. As your luck would have it, this is your first viewing of the image and your supervisor is looking over your shoulder at the image. Supervisor says, “What is that?” The best answer, in the eyes of your supervisor, is a.) I have no idea. b.) It could be a small air, or other gas, pocket. c.) It could be a small bone fragment, or other bonelike structure. d.) It could be left over “yogurt”, from yesterday’s lunch

Explanation / Answer

Option (C)

It could be a fragment of bone or bone like structure because ultrasonic wave is faster in denser medium ( bone have larger density).

Here yogert cant be the right option because soft tissue and yogurt have almost similar density and air pocket have small density.

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