ENJOY THE MOST RECENT SPI EXAM QUESTIONS WITH 1 YEAR OF FREE UPDATES

Enjoy the Most Recent SPI Exam Questions with 1 year of Free Updates

Enjoy the Most Recent SPI Exam Questions with 1 year of Free Updates

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Tags: Exam SPI Online, SPI Braindumps, SPI Exam Topic, SPI Complete Exam Dumps, SPI Pass4sure

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ARDMS SPI Exam Syllabus Topics:

TopicDetails
Topic 1
  • Optimize Sonographic Images: The topic focuses on optimization of axial resolution concepts, optimization of lateral resolution concepts, optimization of elevational resolution concepts, optimization of temporal resolution concepts, and magnification techniques.
Topic 2
  • Manage Ultrasound Transducers: It delves into 2D array transducer concepts, 3D
  • 4D transducer concepts, and nonimaging transducer concepts.
Topic 3
  • Perform Ultrasound Examinations: This topic discusses patient care, sonographic ergonomic techniques, echogenicity, reverberation, and potential bioeffects. It also discusses beam steering concepts, panoramic imaging, 3D
  • 4D concepts, and contrast imaging concepts.
Topic 4
  • Apply Doppler Concepts: It discusses Doppler wall filter concepts, Doppler sample gate concepts, y color priority over gray scale concepts, and concepts related to color Doppler map. Furthermore, it discusses concepts to eliminate aliasing, continuous wave Doppler concepts, and color Doppler scale concepts.
Topic 5
  • Provide Clinical Safety & Quality Assurance: This topic covers universal infection control protocols, QA check on ultrasound machine, transducer integrity, ultrasound machine integrity, and statistical parameter concepts.

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ARDMS Sonography Principles and Instrumentation Sample Questions (Q97-Q102):

NEW QUESTION # 97
The calipers in this image measure which performance characteristic of a system?

  • A. Axial resolution
  • B. Lateral resolution
  • C. Dynamic range
  • D. Depth measurement accuracy

Answer: D

Explanation:
The calipers shown in the image are used to measure the depth of structures within the ultrasound image. This performance characteristic, known as depth measurement accuracy, assesses how accurately the ultrasound system can measure the distance from the transducer to a specific point within the body. Accurate depth measurements are crucial for diagnostic purposes, ensuring that anatomical and pathological structures are correctly identified and evaluated.
Reference:
American Registry for Diagnostic Medical Sonography (ARDMS) Sonography Principles and Instrumentation study materials.
Textbook of Diagnostic Sonography by Hagen-Ansert, S. L. (latest edition).


NEW QUESTION # 98
Which change improves temporal resolution during color flow imaging?

  • A. Increase line density
  • B. Increase field of view
  • C. Decrease transmit frequency
  • D. Decrease packet size

Answer: D

Explanation:
Temporal resolution is improved by increasing the frame rate. One way to increase the frame rate is by decreasing the packet size (also known as ensemble length) in color Doppler imaging. The packet size refers to the number of pulses used to determine the Doppler shift at each location. A smaller packet size means fewer pulses are required, which allows for quicker data acquisition and thus a higher frame rate. Increasing the field of view, decreasing transmit frequency, and increasing line density would all decrease the frame rate and thus degrade temporal resolution.
Reference:
American Registry for Diagnostic Medical Sonography (ARDMS) Sonography Principles and Instrumentation guidelines.


NEW QUESTION # 99
Which pulsed-wave Doppler adjustment would be appropriate to correct the aliasing seen in this image?

  • A. Increase the Doppler pulse repetition frequency.
  • B. Decrease the spectral Doppler gain.
  • C. Decrease the Doppler pulse repetition frequency.
  • D. Increase the spectral Doppler gain.

Answer: A

Explanation:
Aliasing in pulsed-wave Doppler occurs when the sampled Doppler frequency exceeds the Nyquist limit, which is half of the pulse repetition frequency (PRF). This results in an incorrect representation of the blood flow velocities, causing the waveform to wrap around and appear on the opposite side of the baseline. To correct aliasing, the PRF should be increased, which raises the Nyquist limit and allows for accurate measurement of higher velocities without aliasing. Increasing the PRF effectively reduces the likelihood of aliasing artifacts in the Doppler signal.
Reference:
American Registry for Diagnostic Medical Sonography (ARDMS). Sonography Principles and Instrumentation (SPI) Examination Review Guide.


NEW QUESTION # 100
What is the relationship between overall gain and image brightness?

  • A. The higher the overall gain, the brighter the image
  • B. The higher the overall gain, the darker the image
  • C. The lower the overall gain, the brighter the image
  • D. There is no relationship between overall gain and image brightness

Answer: A

Explanation:
Overall gain in ultrasound refers to the amplification of all the received echo signals. Increasing the overall gain amplifies the signals, making the entire image brighter. Conversely, decreasing the overall gain reduces the signal amplification, resulting in a darker image. Overall gain adjustment affects the entire image uniformly, unlike time gain compensation (TGC), which adjusts the gain at different depths independently.
Reference:
ARDMS Sonography Principles and Instrumentation (SPI) Exam Study Guide
"Diagnostic Ultrasound: Principles and Instruments" by Frederick W. Kremkau


NEW QUESTION # 101
Which type of display process rescans only the region of interest and improves resolution?

  • A. Write magnification
  • B. Spatial compounding
  • C. Frequency compounding
  • D. Read magnification

Answer: A

Explanation:
Write magnification, or pre-processing zoom, involves rescanning the region of interest (ROI) with more scan lines, thus acquiring new data for that specific area. This process increases the spatial resolution of the image in the magnified area because it gathers more detailed data by adjusting the scan parameters, resulting in improved image quality. This is different from read magnification (post-processing zoom), which simply enlarges the existing image data without increasing resolution.
Reference:
ARDMS Sonography Principles & Instrumentation Guidelines
Hedrick WR, Hykes DL, Starchman DE. Ultrasound Physics and Instrumentation. 4th ed. Philadelphia, PA: Elsevier Saunders; 2005.


NEW QUESTION # 102
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