ARDMS SPI Sonography Principles and Instrumentation (ARDMS SPI) Online Training
ARDMS SPI Online Training
The questions for SPI were last updated at May 08,2025.
- Exam Code: SPI
- Exam Name: Sonography Principles and Instrumentation (ARDMS SPI)
- Certification Provider: ARDMS
- Latest update: May 08,2025
The calipers in this image measure which performance characteristic of a system?
- A . Depth measurement accuracy
- B . Dynamic range
- C . Axial resolution
- D . Lateral resolution
In this image, which artifact is demonstrated?
- A . Mirroring
- B . Aliasing
- C . Range ambiguity
- D . Spectral broadening
What is a potential negative consequence of using a high wall filter?
- A . Desired signal may be eliminated
- B . Aliasing could occur
- C . Penetration is reduced
- D . Too much noise may appear on the image
During 3-D volume acquisition, the quality of the images is most dependent upon which factor?
- A . Number of slices acquired
- B . Power output
- C . Rendering method utilized
- D . Speed of post-processing image compression
What occurs when the pulse repetition frequency is less than twice the Doppler shift frequency?
- A . Spectral broadening
- B . Range ambiguity
- C . Aliasing
- D . Propagation speed artifact
A Doppler shift is 10,000 Hz at an angle of flow of 60 degrees.
What is the Doppler shift at 0 degrees?
- A . 20,000 Hz
- B . 10,000 Hz
- C . 5,000 Hz
- D . 2,500 Hz
Which unfocused transducer will have the greatest divergence?
- A . 4 mm aperture, 4 MHz
- B . 4 mm aperture, 6 MHz
- C . 6 mm aperture, 4 MHz
- D . 6 mm aperture, 6 MHz
What happens to the amount of attenuation if the path length is doubled?
- A . Quadrupled
- B . Doubled
- C . Halved
- D . Quartered
Which type of resolution will be improved by decreasing the depth of field?
- A . Lateral
- B . Temporal
- C . Axial
- D . Elevational
What improves the temporal resolution of color flow imaging?
- A . Decreasing pulse repetition frequency
- B . Increasing ensemble length (packet size)
- C . Decreasing width of the color field of view
- D . Increasing number of color lines per frame
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