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Using SPI Valid Test Topics - Say Goodbye to Sonography Principles and Instrumentation

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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

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 (Q59-Q64):

NEW QUESTION # 59
Which of these modes has the highest duty factor?

A. Color flow Doppler
B. Pulsed wave Doppler
C. Continuous wave Doppler
D. Gray-scale

Answer: C

Explanation:
The duty factor is the fraction of time that the ultrasound system is actively transmitting a signal. Continuous wave (CW) Doppler has the highest duty factor because it continuously transmits and receives ultrasound waves. Unlike pulsed wave Doppler, which alternates between sending and receiving signals, CW Doppler does not have a listening period, resulting in a duty factor of nearly 100%. Therefore, CW Doppler has the highest duty factor among the modes listed.
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 # 60
Which adjustment was made to change image A to produce image B?
A close-up of an ultrasound Description automatically generated

A. Decreased dynamic range
B. Increased dynamic range
C. Increased overall gain
D. Decreased overall gain

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In Image B, compared to Image A, you can observe a higher contrast image with darker darks and brighter brights, indicating that dynamic range has been reduced. Decreasing dynamic range results in less grey scale, creating a more black-and-white appearance and emphasizing contrast differences.
According to sonography instrumentation reference:
"Reducing dynamic range increases image contrast by narrowing the range of displayed echo intensities, making the image appear more black and white." Therefore, the correct answer is D: Decreased dynamic range.
-

NEW QUESTION # 61
Which unfocused transducer will have the greatest divergence?

A. 4 mm aperture, 4 MHz
B. 6 mm aperture, 6 MHz
C. 6 mm aperture, 4 MHz
D. 4 mm aperture, 6 MHz

Answer: A

Explanation:
Transducer beam divergence is influenced by the aperture size and frequency. A smaller aperture and lower frequency result in greater beam divergence. Among the given options, the transducer with a 4 mm aperture and 4 MHz frequency will have the greatest divergence. This is because the smaller aperture size contributes to a wider beam spread, and the lower frequency also increases the divergence compared to higher frequencies.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Kremkau, F. W. (2015). Diagnostic Ultrasound: Principles and Instruments. Elsevier.

NEW QUESTION # 62
Which can cause color aliasing?

A. High Doppler gain
B. High wall filter
C. Low pulse repetition frequency
D. Low frame rate

Answer: C

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Color aliasing occurs when the Doppler shift exceeds the Nyquist limit, which is determined by the pulse repetition frequency (PRF). A low PRF reduces the Nyquist limit, making aliasing more likely.
According to sonography instrumentation reference:
"Aliasing occurs in color Doppler imaging when the Doppler shift frequency exceeds half of the PRF (Nyquist limit). A low PRF increases the likelihood of aliasing." Therefore, the correct answer is A: Low pulse repetition frequency.
-

NEW QUESTION # 63
What produces increased attenuation within soft tissue?

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

Answer: A

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 # 64
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The software is designed for use on a Windows computer. This software helps hopefuls improve their performance on subsequent attempts by recording and analyzing Sonography Principles and Instrumentation (SPI) exam results. Like the actual ARDMS SPI Certification Exam, Sonography Principles and Instrumentation (SPI) practice exam software has a certain number of questions and allocated time to answer.

100% SPI Correct Answers: https://www.actual4test.com/SPI_examcollection.html

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