Pass Ultrasound Physics Exam Study Guide Review - Volume II by Mansoor Khan

Author:Mansoor Khan [Khan, Mansoor]
Language: eng
Format: azw3, mobi, epub
Publisher: Blue Cube Venture, LLC
Published: 2014-11-12T16:00:00+00:00

Q171. The most likely amount of reflection at a boundary between soft tissues is 1%?

Answer: True

1% or less of the incident ultrasound intensity is reflected at a soft tissue boundary between different biologic media such as blood and muscle.

Q172. As the impedances or acoustic resistance to sound traveling in a medium, becomes different at an interface, the reflection increases?

Answer: True

If there is a difference in impedance at an interface, some of the sound will be reflected. The greater the difference in impedances at an interface, the greater the reflection of ultrasound waves will occur.

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