ARDMS SPI Exam Review TEST 14

October 14, 2017 By Rana Waqar Leave a Comment

1. The strength of the voltages sent to each element is determined by the:
- a. Beam former
- b. Receiver
- c. Scan converter
- d. Display
2. An advantage of coded excitation is improved
- a. Azimuthal resolution
- b. Temporal resolution
- c. Signal-to-noise ratio
- d. Lateral resolution
3. If the far field of the image is too dark, it is recommended that you
- a. Do not press as hard on the patient
- b. Increase the receiver gain
- c. Increase the output gain
- d. Increase scanning time
4. Read zoom is a function of the:
- a. D-to-A converter
- b. A-to-D converter
- c. Preprocessing
- d. Pulser
5. Which type of zoom offers a high-quality zoom but must be selected while the image is live?
- a. Postprocessing zoom
- b. Read zoom
- c. Write zoom
- d. None of the above
6. As the sound beam travels it is attenuated. This explains the need to have which receiver function?
- a. Compression
- b. Demodulation
- c. Amplification
- d. Compensation
7. The smallest component of a 3D image is the:
- a. Bit
- b. Byte
- c. Voxel
- d. Pixel
8. The technique that uses made-up pixel information to replace areas between the scan lines where there is no actual signal information is:
- a. Compression
- b. Fill-in interpolation
- c. Tissue harmonics
- d. Frequency compounding
9. Which of the following is a storage medium that uses a magnetic tape?
- a. Film
- b. Thermal printer
- c. VHS
- d. CD
10. An artifact that occurs when a sound beam bounces back and forth between two strong reflectors, creating a “step-ladder”-like appearance is:
- a. Reverberation
- b. Side lobes
- c. Multipath
- d. Edge shadowing

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