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Get ARDMS SPI Dumps For Quick Study [2025]

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ARDMS SPI Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

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 3

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

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.

ARDMS Sonography Principles and Instrumentation Sample Questions (Q125-Q130):

NEW QUESTION # 125
Which adjustment improves temporal resolution?

A. Increase sector width
B. Decrease display depth
C. Decrease transmitted frequency
D. Increase number of focal zones

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Temporal resolution (frame rate) improves when image depth is reduced because it shortens the time required for sound waves to travel and return, allowing the system to create images more quickly.
According to sonography instrumentation reference:
"Decreasing imaging depth shortens the time per frame, resulting in higher frame rates and improved temporal resolution." Therefore, the correct answer is D: Decrease display depth.

NEW QUESTION # 126
Which Doppler control adjustment could eliminate the end-diastolic velocity in the Doppler spectrum?

A. Increased packet size
B. Increased wall filter
C. Increased Doppler gain
D. Increased velocity scale

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The end-diastolic velocity represents the lower velocity portion of the Doppler waveform. The wall filter (or high-pass filter) removes low-frequency Doppler shifts from the spectral display. When the wall filter is increased, it filters out these low-velocity signals - including diastolic flow components. According to sonography Principles and Instrumentation reference materials:
"The wall filter eliminates low-velocity signals from the Doppler spectrum. Increasing the wall filter may completely eliminate end-diastolic velocities, especially in low-resistance arterial flow." Therefore, the correct answer is D: Increased wall filter.
-

NEW QUESTION # 127
Which is a method to reduce noise?

A. Decrease beam width
B. Increase frequency
C. Increase persistence
D. Decrease depth

Answer: C

Explanation:
Persistence is a form of temporal averaging where consecutive frames are averaged to reduce random noise, resulting in a smoother image. Increasing persistence effectively reduces noise by averaging out transient noise artifacts while preserving the true signal. This improves image quality, although it may also reduce the temporal resolution, making it less suitable for rapidly moving structures.
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 # 128
During 3-D volume acquisition, the quality of the images is most dependent upon which factor?

A. Power output
B. Speed of post-processing image compression
C. Rendering method utilized
D. Number of slices acquired

Answer: D

Explanation:
During 3-D volume acquisition in ultrasound, the quality of the images is most dependent on the number of slices acquired. This is because the more slices (or planes) that are captured, the more detailed and accurate the reconstruction of the 3-D volume will be. This allows for better spatial resolution and more precise visualization of anatomical structures. Other factors, such as power output, rendering methods, and speed of post-processing, also affect image quality but are secondary to the number of slices in terms of fundamental image acquisition quality.
References:ARDMS Sonography Principles and Instrumentation (SPI) Review, 3-D Ultrasound Imaging section.

NEW QUESTION # 129
What produces increased attenuation within soft tissue?

A. Lower frequency of the ultrasound beam
B. Higher frequency of the ultrasound beam
C. Lower intensity of the ultrasound beam
D. Higher intensity of the ultrasound beam

Answer: B

Explanation:
Attenuation refers to the reduction in the intensity of the ultrasound beam as it travels through tissue. Higher frequency ultrasound beams experience more attenuation because they are absorbed and scattered more than lower frequency beams. This is due to the fact that higher frequency waves have shorter wavelengths and interact more with the small particles in tissues, causing greater energy loss.
References:ARDMS Sonography Principles and Instrumentation, Chapter on Ultrasound Physics and Instrumentation.

NEW QUESTION # 130
......

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