SPI PASSLEADER REVIEW - RELIABLE TEST SPI TEST

SPI Passleader Review - Reliable Test SPI Test

SPI Passleader Review - Reliable Test SPI Test

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Dumps4PDF provides updated and valid ARDMS SPI Exam Questions because we are aware of the absolute importance of updates, keeping in mind the ARDMS SPI Exam Syllabus. We provide you update checks for 365 days after purchase for absolutely no cost. And the Sonography Principles and Instrumentation SPI price is affordable.

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
  • Manage Ultrasound Transducers: It delves into 2D array transducer concepts, 3D
  • 4D transducer concepts, and nonimaging transducer concepts.
Topic 4
  • 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 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 (Q52-Q57):

NEW QUESTION # 52
Which adjustment resulted in the change from image A to image B?

  • A. Decreased color gain
  • B. Decreased acoustic power
  • C. Increased transmit frequency
  • D. Increased scale

Answer: A

Explanation:
* Increased Transmit Frequency: This would generally improve the resolution of the image but does not directly correlate to the changes seen in the provided image link.
* Increased Scale: Adjusting the scale changes the velocity range displayed but does not directly affect the speckle or noise reduction.
* Decreased Color Gain: Reducing the color gain can decrease the amount of color noise, making the blood flow regions more defined, which aligns with the change observed from image A to image B.
* Decreased Acoustic Power: This reduces the overall intensity of the ultrasound beam, affecting penetration depth and overall brightness but is less likely to result in the specific improvements seen.
References:
"Understanding Ultrasound Physics" by Sidney K. Edelman
ARDMS Sonography Principles and Instrumentation study materials


NEW QUESTION # 53
Which setting is the most likely cause of the artifact displayed in this image?
A close-up of a ultrasound Description automatically generated

  • A. Velocity scale set too high
  • B. Velocity scale set too low
  • C. Color gain set too high
  • D. Color gain set too low

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The image shows color aliasing, where the colors abruptly change within the vessel indicating wrap-around of Doppler shifts. This happens when the velocity scale (PRF) is set too low, causing velocities exceeding the Nyquist limit to alias.
According to sonography instrumentation reference:
"Aliasing occurs in color Doppler when the flow velocities exceed the Nyquist limit, commonly due to a low velocity scale (PRF)." Therefore, the correct answer is D: Velocity scale set too low.
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NEW QUESTION # 54
Which resolution can be evaluated in the area indicated by the red oval in this image of a tissue-equivalent phantom?

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

Answer: B

Explanation:
The tissue-equivalent phantom image with the red oval indicates an area where axial resolution can be evaluated. Axial resolution refers to the ability to distinguish between two structures that are close together along the axis of the ultrasound beam. It is determined by the spatial pulse length (SPL) of the ultrasound wave. In phantoms, this is typically tested by observing the ability to separate closely spaced targets along the beam's path.
References:
ARDMS Sonography Principles & Instrumentation Guidelines
Hedrick WR, Hykes DL, Starchman DE.Ultrasound Physics and Instrumentation. 4th ed. Philadelphia, PA:
Elsevier Saunders; 2005.


NEW QUESTION # 55
Which feature is a characteristic of continuous wave Doppler?

  • A. Range specificity
  • B. Low thermal index
  • C. Dedicated transmit and receive crystals
  • D. Aliasing

Answer: C

Explanation:
Continuous wave Doppler uses two crystals - one for transmitting and one for receiving ultrasound waves continuously. This allows for the measurement of high velocities without aliasing, a common limitation in pulsed wave Doppler. However, continuous wave Doppler does not have range specificity, meaning it cannot precisely determine the depth from which the Doppler signal is returning.
Reference: ARDMS Sonography Principles and Instrumentation, Chapter on Doppler Ultrasound.


NEW QUESTION # 56
Which effect does spatial compounding have on ultrasound images?

  • A. Decreases shadowing
  • B. Increases shadowing
  • C. Decreases propagation speed
  • D. Increases propagation speed

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Spatial compounding acquires multiple frames from different angles and combines them into a single image.
This technique reduces the appearance of artifacts such as shadowing and speckle noise, resulting in a smoother, more uniform image.
According to sonography instrumentation reference:
"Spatial compounding reduces artifacts like posterior shadowing and speckle by averaging data from multiple insonation angles." Therefore, the correct answer is D: Decreases shadowing.
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NEW QUESTION # 57
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