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CHAPTER 3: UNDERSTANDING ULTRASOUND SYSTEM CONTROLS
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1. Which of the following is the least frequently used mode used during TEE examinations?
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c. Continuous-wave Doppler
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d. Two-dimensional gray-scale imaging
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2. Two-dimensional gray scale is considered what type of imaging?
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3. The most important control for two-dimensional gray-scale imaging is:
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4. Time gain compensation is a control that allows the operator to:
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a. Adjust color Doppler velocity
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c. Compensate for ultrasound attenuation
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d. Decrease the output power
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5. The two-dimensional compression control changes:
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6. The zoom control is used in order to:
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b. Enhance area of interest
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7. Annotation is used for which of the following purposes?
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c. Create an ultrasound report
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d. Control overall system gain
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8. Ultrasound harmonic frequencies are the result of:
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b. Strong reflectors in the near field
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c. Propagation of ultrasound through tissue
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d. Weak reflectors in the far field
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