UPDATED SPI PRACTICE EXAMS FOR SELF-ASSESSMENT (WEB-BASED )

Updated SPI Practice Exams for Self-Assessment (Web-Based )

Updated SPI Practice Exams for Self-Assessment (Web-Based )

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Tags: Latest SPI Exam Questions Vce, SPI Accurate Test, New SPI Test Sims, Valid SPI Exam Bootcamp, SPI Best Study Material

Maybe life is too dull; people are willing to pursue some fresh things. If you are tired of the comfortable life, come to learn our SPI exam guide. Learning will enrich your life and change your views about the whole world. Also, lifelong learning is significant in modern society. Perhaps one day you will become a creative person through your constant learning of our SPI Study Materials. And with our SPI practice engine, your dream will come true.

ARDMS SPI Exam Syllabus Topics:

TopicDetails
Topic 1
  • Manage Ultrasound Transducers: It delves into 2D array transducer concepts, 3D
  • 4D transducer concepts, and nonimaging transducer concepts.
Topic 2
  • 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 3
  • 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 4
  • 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.
Topic 5
  • 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.

>> Latest SPI Exam Questions Vce <<

SPI Accurate Test, New SPI Test Sims

Using computer-aided software to pass the ARDMS SPI exam has become a new trend. Because the new technology enjoys a distinct advantage, that is convenient and comprehensive. In order to follow this trend, our company product such a Sonography Principles and Instrumentation SPI Exam Questions that can bring you the combination of traditional and novel ways of studying.

ARDMS Sonography Principles and Instrumentation Sample Questions (Q21-Q26):

NEW QUESTION # 21
Which factor does a string phantom evaluate?

  • A. Intensity values
  • B. Flow velocity
  • C. Two-dimensional resolution
  • D. Slice thickness

Answer: B

Explanation:
A string phantom is designed to evaluate the accuracy of Doppler ultrasound systems, specifically in measuring flow velocity. It consists of a moving string or filament that mimics blood flow within a vessel. By using this phantom, sonographers can assess how accurately the ultrasound system can detect and measure the speed of the moving target. This helps in calibrating and verifying the performance of Doppler systems, ensuring they provide accurate flow velocity readings in clinical practice.
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 # 22
What improves the temporal resolution of color flow imaging?

  • A. Decreasing width of the color field of view
  • B. Increasing number of color lines per frame
  • C. Decreasing pulse repetition frequency
  • D. Increasing ensemble length (packet size)

Answer: A

Explanation:
Temporal resolution refers to the ability of the ultrasound system to distinguish events occurring closely in time. In color flow imaging, temporal resolution is affected by the frame rate, which can be increased by decreasing the width of the color field of view. This is because a narrower color field requires fewer scan lines to be processed, allowing for more frames to be captured per second.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Edelman, S. K. (2017). Understanding Ultrasound Physics.


NEW QUESTION # 23
Which technique averages individual frames together to improve the image?

  • A. Coded excitation
  • B. Harmonic imaging
  • C. Persistence
  • D. Compression

Answer: C

Explanation:
Persistence is a technique used in ultrasound imaging that averages individual frames together to improve the overall image quality. This process helps to reduce noise and improve the signal-to-noise ratio, leading to clearer and more stable images. By averaging multiple frames, transient artifacts are minimized, and the continuity of structures is better visualized. Persistence is particularly useful in imaging static or slow-moving structures. Reference:
ARDMS Sonography Principles and Instrumentation guidelines
"Ultrasound Physics and Technology: How, Why and When" by M. Evans, C. Archer, and K. Weston


NEW QUESTION # 24
Which resolution capability is most affected by spatial pulse length?

  • A. Axial
  • B. Lateral
  • C. Temporal
  • D. Elevational

Answer: A

Explanation:
Axial resolution refers to the ability to distinguish two structures that are close to each other along the path of the ultrasound beam.
Spatial pulse length (SPL) is the distance over which one pulse occurs, and it directly affects axial resolution.
Shorter SPL improves axial resolution because it allows better differentiation of closely spaced structures.
The axial resolution is improved by increasing the frequency of the transducer, which shortens the wavelength and hence the SPL. Reference:
ARDMS Sonography Principles and Instrumentation guidelines on resolution parameters and their impact on image quality.


NEW QUESTION # 25
What is the most effective way to reduce aliasing on color Doppler?

  • A. Decrease wall filter
  • B. Decrease pulse repetition frequency (PRF)
  • C. Increase pulse repetition frequency (PRF)
  • D. Increase wall filter

Answer: C

Explanation:
Aliasing in color Doppler occurs when the velocity of blood flow exceeds the Nyquist limit, which is half the PRF. To reduce aliasing, the PRF must be increased. This raises the Nyquist limit, allowing higher velocities to be measured without wrapping around the baseline. Increasing PRF reduces the occurrence of aliasing artifacts by expanding the range of detectable velocities before aliasing occurs.
Reference:
ARDMS Sonography Principles & Instrumentation Guidelines
Kremkau FW. Sonography Principles and Instruments. 9th ed. Philadelphia, PA: Elsevier; 2016.


NEW QUESTION # 26
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