Make Exam Preparation Simple With Real ARDMS SPI Exam Questions

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The ARDMS SPI questions PDF questions are portable and printable, making it simple for you to prepare for the Sonography Principles and Instrumentation (SPI) test in a short time. Smart devices such as smartphones, tablets, and laptops all support the ARDMS SPI Exam PDF dumps format of our study material.

ARDMS SPI Exam Syllabus Topics:

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

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ARDMS Sonography Principles and Instrumentation Sample Questions (Q156-Q161):

NEW QUESTION # 156
Which factor causes posterior acoustic enhancement?

A. High-frequency transducer
B. Weakly attenuating structure
C. Strongly attenuating structure
D. Low-frequency transducer

Answer: B

Explanation:
* High-Frequency Transducer: These provide better resolution but do not directly cause posterior enhancement.
* Low-Frequency Transducer: These provide better penetration but are not the cause of posterior enhancement.
* Strongly Attenuating Structure: This would cause acoustic shadowing rather than enhancement.
* Weakly Attenuating Structure: Structures that attenuate the ultrasound beam less than the surrounding tissues allow more sound waves to pass through, resulting in increased brightness or "enhancement" behind the structure.
References:
"Ultrasound Physics and Instrumentation" by Frank Miele
ARDMS Sonography Principles and Instrumentation study materials

NEW QUESTION # 157
Which adjustment will reduce the appearance of posterior shadowing artifact?

A. Decreasing dynamic range
B. Increasing persistence
C. Increasing spatial compounding
D. Decreasing the number of focal zones

Answer: C

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Spatial compounding uses multiple scan angles to create an image. By combining information from different angles, it can reduce shadowing artifacts caused by highly attenuating structures.
According to sonography instrumentation reference:
"Spatial compounding reduces artifacts such as posterior shadowing by averaging images acquired from multiple insonation angles." Therefore, the correct answer is A: Increasing spatial compounding.
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NEW QUESTION # 158
Which settings would produce the best temporal resolution?

A. Fewer focal zones and shallower depth
B. More focal zones and shallower depth
C. More focal zones and deeper depth
D. Fewer focal zones and deeper depth

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Temporal resolution refers to the system's ability to accurately track moving structures over time (i.e., frame rate). Temporal resolution improves when:
* The number of focal zones is reduced (fewer focal zones = faster frame rate).
* The imaging depth is reduced (shallower depth = faster frame rate).
According to sonography instrumentation references:
"Fewer focal zones and shallow imaging depth optimize temporal resolution by decreasing the time required for each frame, resulting in a higher frame rate." Therefore, the correct answer is C: Fewer focal zones and shallower depth.

NEW QUESTION # 159
Which target group is used to evaluate transverse distance measurement accuracy in this tissue-mimicking phantom image?

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

Answer: B

Explanation:
In the tissue-mimicking phantom image, Option D (blue box) is used to evaluate transverse distance measurement accuracy. Phantoms are used to simulate human tissue and provide a standardized way to test the accuracy and precision of ultrasound machines. Transverse distance measurement accuracy is assessed by measuring known distances between targets in the phantom. The blue box (Option D) typically contains targets positioned to specifically test the accuracy of transverse measurements, ensuring that the ultrasound system provides reliable and precise distance readings.
Reference:
ARDMS Sonography Principles and Instrumentation (SPI) Exam Study Guide
"Quality Assurance for Ultrasound Imaging Systems" by AAPM (American Association of Physicists in Medicine)

NEW QUESTION # 160
What is an advantage of pulsed-wave Doppler over continuous-wave Doppler?

A. Increased sensitivity to slow flow
B. Range resolution
C. High signal-to-noise ratio
D. Unlimited maximum detectable velocity

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The primary advantage of pulsed-wave Doppler is its ability to provide range resolution. This means the operator can select a specific depth (sample volume) from which Doppler signals are acquired, allowing precise localization of blood flow velocities.
According to sonography instrumentation reference:
"Pulsed-wave Doppler allows for range resolution, enabling velocity measurements at a specific depth along the ultrasound beam path." Continuous-wave Doppler does not have range resolution, as it measures velocities along the entire beam path.
Therefore, the correct answer is C: Range resolution.

NEW QUESTION # 161
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MAKE EXAM PREPARATION SIMPLE WITH REAL ARDMS SPI EXAM QUESTIONS

Make Exam Preparation Simple With Real ARDMS SPI Exam Questions