What does posterior acoustic shadowing

What artifact can help in differentiating cystic and solid masses?Choose only ONE best answer. A Posterior acoustic shadowing B
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What artifact appears as a hyperechoic region behind tissues with abnormally low attenuation than surrounding tissue?Choose only
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What artifact appears as an anechoic region extending downward from a very strong or too much attenuating medium than in the
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What is posterior acoustic enhancement also known as?Choose only ONE best answer. A Dirty shadowing B Good through transmission
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What artifact occurs as a result of refraction of sound waves on the edge of an object?Choose only ONE best answer. A Edge
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What is posterior acoustic shadowing also known as?Choose only ONE best answer. A Good through transmission artifact B Dirty
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What artifact occurs when the doppler frequency shift exceeds half the pulse repetition frequency?Choose only ONE best answer. A
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What is the diagnostic importance of posterior acoustic shadowing?Choose only ONE best answer. A It indicates the presence of a
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What is the diagnostic importance of posterior acoustic shadowing?Choose only ONE best answer. A It indicates the presence of a
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What causes posterior acoustic shadowing?Choose only ONE best answer. A Reflection and scattering of ultrasound waves B Presence
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