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Understanding Ultrasound Physics - Edelman Chapter 10 | Questions and Answers | 2025 Update | 100% Correct.

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What focusing includes both external and internal techniques? - CORRECT ANSWERFixed Focusing With external focusing, a ____ is placed in front of the piezoelectric material. - CORRECT ANSWER-Lens With internal focusing, a ________________ concentrates the sound energy into a narrower or tighter beam. - CORRECT ANSWER-curved piezoelectric cystal Axial resolution equation - CORRECT ANSWER-axial resolution = spatial pulse length / 2 Axial resolution equation in soft tissue - CORRECT ANSWER-Axial resolution = .77 x # cycles in pulse/ frequency A shorter pulse is created in what two ways? - CORRECT ANSWER-less ringing, higher frequency

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Understanding Ultrasound Physics - Edelman Chapter
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Understanding Ultrasound Physics - Edelman Chapter

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Understanding Ultrasound Physics -
Edelman Chapter 10

What focusing includes both external and internal techniques? - CORRECT ANSWER-
Fixed Focusing

With external focusing, a ____ is placed in front of the piezoelectric material. -
CORRECT ANSWER-Lens

With internal focusing, a ________________ concentrates the sound energy into a
narrower or tighter beam. - CORRECT ANSWER-curved piezoelectric cystal


Axial resolution equation - CORRECT ANSWER-axial resolution = spatial pulse length /
2

Axial resolution equation in soft tissue - CORRECT ANSWER-Axial resolution = .77 x #
cycles in pulse/ frequency

A shorter pulse is created in what two ways? - CORRECT ANSWER-less ringing, higher
frequency

Axial resolution is ____ the spatial pulse length - CORRECT ANSWER-1/2

ability to distinctly identify two structures that are very close together when they are side
by side or perpendicular to the sound beams main axis - CORRECT ANSWER-Lateral
Resolution

Lateral resolution is determined by the ________. - CORRECT ANSWER-Width of the
sound beam

LATA (other names for lateral resolution) - CORRECT ANSWER-Lateral, angular,
transverse, azimuthal

Lateral resolution is best at the ________. - CORRECT ANSWER-Focus

lateral resolution = - CORRECT ANSWER-Beam Diameter

3 methods of focusing - CORRECT ANSWER-External, Internal, Phased Array
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Understanding Ultrasound Physics - Edelman Chapter
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Understanding Ultrasound Physics - Edelman Chapter

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