ARDMS SPI New Study Plan & SPI Test Free

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ARDMS SPI Exam Syllabus Topics:

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

ARDMS Sonography Principles and Instrumentation Sample Questions (Q91-Q96):

NEW QUESTION # 91
What occurs when the pulse repetition frequency is less than twice the Doppler shift frequency?

A. Spectral broadening
B. Aliasing
C. Range ambiguity
D. Propagation speed artifact

Answer: B

Explanation:
Aliasing occurs in Doppler ultrasound when the pulse repetition frequency (PRF) is less than twice the Doppler shift frequency (Nyquist limit). When this condition is met, the Doppler signals are not sampled frequently enough to accurately measure the frequency shifts, resulting in the misrepresentation of the flow velocities. This causes the aliasing artifact, where high-velocity flows are displayed incorrectly as wrapping around the baseline, leading to potential diagnostic errors.
Reference: ARDMS Sonography Principles and Instrumentation (SPI) Review, Doppler Artifacts section.

NEW QUESTION # 92
Which artifact is seen as a result of an increase in echo amplitude in the tissue located distal to an anechoic structure?

A. Reverberation
B. Enhancement
C. Mirror image
D. Comet tail

Answer: B

NEW QUESTION # 93
Which adjustment will reduce the artifact in the cystic lesion in image A resulting in image B?

A. Turn on edge enhancement
B. Increase dynamic range
C. Turn off harmonics

Answer: A

Explanation:
Edge enhancement is a processing technique used in ultrasound imaging to improve the visibility of the edges of structures.
In image A, the borders of the cystic lesion might appear less defined due to a lack of edge enhancement.
By turning on edge enhancement, the ultrasound system processes the image to accentuate the boundaries, leading to a clearer and more distinct outline of the cystic lesion as seen in image B.
This adjustment reduces the artifact within the cystic lesion by emphasizing the differences in the adjacent tissue interfaces, thus improving the overall image quality. Reference:
American Registry for Diagnostic Medical Sonography (ARDMS) Sonography Principles and Instrumentation guidelines on image optimization techniques.

NEW QUESTION # 94
Which index is related to the likelihood of cavitation?

A. Thermal
B. Acoustical output
C. Temporal
D. Mechanical

Answer: D

Explanation:
The Mechanical Index (MI) is related to the likelihood of cavitation, which is the formation of gas bubbles in a liquid due to the low-pressure regions of the ultrasound wave. MI is a parameter that predicts the potential for mechanical bioeffects, including cavitation. A higher MI indicates a greater likelihood of cavitation occurring. It is calculated based on the peak negative pressure and the frequency of the ultrasound wave.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Kremkau, F. W. (2015). Diagnostic Ultrasound: Principles and Instruments.

NEW QUESTION # 95
In this image, what does the data below the baseline represent?

A. Mirror image artifact
B. Wall filter setting too high
C. Aliasing and retrograde blood flow
D. Blood flow directed towards the transducer

Answer: C

Explanation:
In the provided image, data below the baseline represents blood flow moving away from the transducer, which can indicate retrograde flow. When using spectral Doppler, the baseline separates flows towards and away from the transducer. Aliasing occurs when the velocity of blood flow exceeds the Nyquist limit, causing the display to wrap around and appear on the opposite side of the baseline. This phenomenon is common in high-velocity flow situations and results in part of the flow being displayed below the baseline. Retrograde flow further supports this, as it shows blood moving in the opposite direction to the expected flow.
Reference:
ARDMS Sonography Principles & Instrumentation Guidelines
Kremkau FW. Sonography Principles and Instruments. 9th ed. Philadelphia, PA: Elsevier; 2016.

NEW QUESTION # 96
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ARDMS SPI NEW STUDY PLAN & SPI TEST FREE

ARDMS SPI New Study Plan & SPI Test Free