LATEST SPI LEARNING MATERIAL - SONOGRAPHY PRINCIPLES AND INSTRUMENTATION REALISTIC 100% PASS QUIZ

Latest SPI Learning Material - Sonography Principles and Instrumentation Realistic 100% Pass Quiz

Latest SPI Learning Material - Sonography Principles and Instrumentation Realistic 100% Pass Quiz

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

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ARDMS Sonography Principles and Instrumentation Sample Questions (Q153-Q158):

NEW QUESTION # 153
Which target group in this image of a tissue-mimicking phantom is used to evaluate axial resolution?

  • A. Option D
  • B. Option A
  • C. Option C
  • D. Option B

Answer: D

Explanation:
In the given image of a tissue-mimicking phantom, Option B (yellow box) is used to evaluate axial resolution.
Axial resolution refers to the ability of the ultrasound system to distinguish between two structures that are close to each other along the path of the ultrasound beam (i.e., parallel to the beam). The targets in Option B are typically aligned in such a way to test the system's capacity to differentiate between structures that are situated closely together along the beam's axis.References:
* ARDMS Sonography Principles and Instrumentation guidelines
* "Sonography: Principles and Instruments" by Joan P. Baker and Marveen Craig


NEW QUESTION # 154
Which factor does a string phantom evaluate?

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

Answer: C

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 # 155
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 # 156
What is the primary determining factor of the fundamental frequency for pulsed wave transducers?

  • A. Crystal diameter
  • B. Propagation speed
  • C. Transducer type
  • D. Element thickness

Answer: D

Explanation:
The fundamental frequency of a pulsed wave transducer is primarily determined by the thickness of the piezoelectric element. The frequency is inversely proportional to the thickness of the element - thinner elements produce higher frequencies, while thicker elements produce lower frequencies. This relationship is derived from the formula =2f=2dv,where f is the frequency, v is the propagation speed of sound in the piezoelectric material, and d is the thickness of the element.
Reference: ARDMS Sonography Principles and Instrumentation, Chapter on Transducer Technology.


NEW QUESTION # 157
Which change can be made in order to avoid exceeding the Nyquist limit?

  • A. Increase pulse repetition frequency
  • B. Increase output power
  • C. Decrease output power
  • D. Decrease pulse repetition frequency

Answer: A

Explanation:
To avoid exceeding the Nyquist limit and prevent aliasing in Doppler ultrasound, the pulse repetition frequency (PRF) should be increased. The Nyquist limit is half of the PRF, so by increasing the PRF, the Nyquist limit is raised, allowing the system to accurately measure higher velocities without encountering aliasing artifacts.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Zwiebel, W. J., & Pellerito, J. S. (2017). Introduction to Vascular Ultrasonography. Elsevier.


NEW QUESTION # 158
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