Newest ARDMS Test SPI Topics Pdf Are Leading Materials & Authoritative SPI: Sonography Principles and Instrumentation

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ARDMS SPI Exam Syllabus Topics:

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

ARDMS Sonography Principles and Instrumentation Sample Questions (Q28-Q33):

NEW QUESTION # 28
Which type of resolution will be improved by decreasing the depth of field?

A. Lateral
B. Elevational
C. Axial
D. Temporal

Answer: A

Explanation:
Lateral resolution refers to the ability to distinguish two structures that are side by side. It is dependent on the width of the ultrasound beam. By decreasing the depth of field, the beam width is reduced at any given point along the depth, which improves the lateral resolution. This is because a narrower beam can better distinguish between objects that are close together laterally.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Kremkau, F. W. (2015). Diagnostic Ultrasound: Principles and Instruments.

NEW QUESTION # 29
Which artifact results from decreased attenuation?

A. Reverberation
B. Comet tail
C. Ringdown
D. Enhancement

Answer: D

Explanation:
Enhancement is an artifact that results from decreased attenuation. When an ultrasound wave travels through a medium with lower attenuation compared to surrounding tissues, it loses less energy. Consequently, the structures located deeper than the low-attenuation medium appear brighter on the ultrasound image. This artifact is commonly observed behind fluid-filled structures, such as cysts or the urinary bladder, where the sound waves encounter minimal resistance and thus less attenuation. Reference:
ARDMS Sonography Principles and Instrumentation guidelines
"Diagnostic Ultrasound: Principles and Instruments" by Frederick W. Kremkau

NEW QUESTION # 30
Which adjustment follows the ALARA (As Low As Reasonably Achievable) principle of patient safety?

A. Decrease output power
B. Increase sector width
C. Increase number of focal zones
D. Decrease depth

Answer: A

Explanation:
The ALARA principle stands for "As Low As Reasonably Achievable" and aims to minimize patient exposure to ultrasound energy. Decreasing the output power reduces the intensity of the ultrasound waves, thereby reducing the potential for tissue heating and mechanical effects, which aligns with the ALARA principle of minimizing exposure while still obtaining necessary diagnostic information.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Hangiandreou, N. J. (2003). "Physics Tutorial for Residents: Topics in US: B-Mode US: Basic Concepts and New Technology." Radiographics.

NEW QUESTION # 31
What causes color flash artifact?

A. Aliasing
B. High velocity blood flow
C. Tissue motion
D. Strong reflector

Answer: C

Explanation:
Color flash artifact occurs due to tissue motion. This artifact is a type of color Doppler artifact that happens when there is movement of tissue or transducer, which causes the Doppler system to incorrectly interpret the motion as blood flow. This results in a flash of color appearing on the image where there is actually no flow. Tissue motion affects the Doppler signal, leading to misinterpretation by the system, and hence the artifact appears as a flash of color.
Reference:
ARDMS Sonography Principles and Instrumentation (SPI) Exam Study Guide
"Diagnostic Ultrasound: Principles and Instruments" by Frederick W. Kremkau

NEW QUESTION # 32
In this image, which characteristics of flow are represented by the upper right side of a variance mode color map?

A. Higher velocity, turbulent with a negative Doppler shift
B. Higher velocity, laminar with a negative Doppler shift
C. Higher velocity, turbulent with a positive Doppler shift
D. Higher velocity, laminar with a positive Doppler shift

Answer: C

Explanation:
In a variance mode color map, the upper right side typically indicates higher velocity and turbulent flow with a positive Doppler shift. Variance mode maps are designed to display not only the mean velocity and direction of blood flow but also the presence of turbulence. The color green is often used in the upper right quadrant to represent areas of turbulence with positive Doppler shifts, which occur when the blood flow is moving towards the transducer at higher velocities and with increased chaotic motion. Reference:
ARDMS Sonography Principles and Instrumentation guidelines
"Diagnostic Ultrasound: Physics and Equipment" by Peter Hoskins, Kevin Martin, Abigail Thrush

NEW QUESTION # 33
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