• Exam Code: SPI
  • Exam Name: Sonography Principles and Instrumentation
  • Certification Provider: ARDMS
  • Corresponding Certification:ARDMS SPI
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SPI
  • Exam Code: SPI
  • Exam Name: Sonography Principles and Instrumentation
  • Updated: Oct 19, 2026
  • No. of Questions: 208 Questions and Answers
  • Download Limit: Unlimited

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ARDMS SPI Exam Syllabus Topics:

TopicDetails
Topic 1
  • Apply Doppler Concepts: This section of the exam measures skills of Vascular Sonographers and evaluates understanding and application of Doppler ultrasound principles. It includes knowledge of Doppler angle, flow dynamics, and color and spectral Doppler imaging. The section also covers eliminating aliasing, interpreting waveforms, applying continuous and pulsed wave Doppler, and optimizing Doppler gain and scale to accurately measure blood flow and velocity within vessels.
Topic 2
  • Provide Clinical Safety and Quality Assurance: This section of the exam measures skills of Clinical Ultrasound Supervisors and focuses on maintaining safety and quality standards in ultrasound practice. It includes infection control protocols, transducer and machine integrity checks, and quality assurance testing using tissue-mimicking phantoms. The section also requires familiarity with statistical parameters like sensitivity and specificity to evaluate diagnostic performance and ensure consistent, reliable imaging outcomes.
Topic 3
  • Manage Ultrasound Transducers: This section of the exam measures skills of Ultrasound Technicians and focuses on the management and proper use of different types of transducers. It evaluates knowledge of transducer components, frequency selection, and application of various 2D, 3D, 4D, and nonimaging transducer concepts. Candidates must show they can choose the appropriate transducer for specific examinations and make necessary frequency adjustments to ensure image quality.
Topic 4
  • Perform Ultrasound Examinations: This section of the exam measures skills of Sonographers and covers how to conduct ultrasound procedures while ensuring patient safety and diagnostic accuracy. It includes understanding of imaging protocols, ergonomics, patient care, and the interaction between sound and tissue. Candidates are expected to demonstrate abilities to manage patient encounters, apply 3D
  • 4D and contrast imaging concepts, identify and correct artifacts, and follow confidentiality and privacy standards throughout the scanning process.
Topic 5
  • Optimize Sonographic Images: This section of the exam measures skills of Diagnostic Medical Sonographers and assesses their ability to enhance image quality using advanced optimization techniques. It includes understanding axial, lateral, elevational, and temporal resolution, as well as manipulating gain, depth, magnification, and dynamic range. Examinees are expected to apply harmonic imaging, spatial compounding, and gray-scale techniques to produce clear, accurate diagnostic images.

Reference: https://www.ardms.org/get-certified/spi/

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ARDMS Sonography Principles and Instrumentation Sample Questions:

For harmonic imaging, what must the overall transducer bandwidth contain?

  • A. Fundamental and even harmonic frequencies
  • B. Fundamental and second harmonic frequencies
  • C. Fundamental and odd harmonic frequencies
  • D. Fundamental and fourth harmonic frequencies
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Which adjustment will improve visualization of blood flow if color extends outside the boundary of the vessel walls?

  • A. Decreasing wall filter
  • B. Decreasing depth
  • C. Increasing wall filter
  • D. Increasing depth
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Which artifact is caused by defects in the crystals of the transducer?

  • A. Side lobe
  • B. Ringdown
  • C. Dropout
  • D. Mirror image
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Which artifact may be caused by incorrect color Dopplergain setting?

  • A. Bleed/Blossoming
  • B. Clutter/Haze
  • C. Twinkle
  • D. Aliasing
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for TrainingDump members. You can sign-up / login (it's free).

Which adjustment resolves spectral Doppler aliasing?

  • A. Decrease transducer frequency
  • B. Decrease velocity scale
  • C. Increase sweep speed
  • D. Increase time gain compensation
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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