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Study SPI Dumps 100% Pass | Latest ARDMS Valid Test Sonography Principles and Instrumentation Experience Pass for sure

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ARDMS SPI Exam Syllabus Topics:

Topic
Details

Topic 1

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 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

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

Topic 4

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 5

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.

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ARDMS Sonography Principles and Instrumentation Sample Questions (Q73-Q78):

NEW QUESTION # 73
Which statement describes the purpose of using a spectral Doppler wall filter?

A. To eliminate the lower velocity signals
B. To widen the area in which the Doppler shift is sampled
C. To clean up the audio signals
D. To eliminate the higher velocity signals

Answer: A

Explanation:
The purpose of using a spectral Doppler wall filter is to eliminate lower velocity signals. Wall filters are designed to remove low-frequency Doppler shifts caused by the motion of the vessel walls or surrounding tissues, which are generally of no diagnostic value. By eliminating these lower velocity signals, the wall filter helps to clean up the Doppler signal and reduce clutter, allowing for a clearer and more accurate display of blood flow velocities.
References
* ARDMS Sonography Principles and Instrumentation (SPI) Exam Study Guide
* "Diagnostic Ultrasound: Principles and Instruments" by Frederick W. Kremkau

NEW QUESTION # 74
What is the effect of increasing the overall gain?

A. Increase in the number of returning signals
B. Amplification of signals from all depths
C. Increase in the amplitude of the transmitted pulse
D. Compensation for attenuation at selected depths

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Overall gain amplifies the strength of all returning echoes equally, regardless of depth. It does not affect the transmitted pulse or selectively compensate for attenuation; it simply amplifies received signals uniformly.
According to sonography instrumentation reference:
"Overall gain controls the amplification of all returning echoes across the entire image, increasing brightness uniformly at all depths." Therefore, the correct answer is B: Amplification of signals from all depths.
-

NEW QUESTION # 75
Which pulsed-wave Doppler adjustment would be appropriate to correct the aliasing seen in this image?

A. Increase the spectral Doppler gain.
B. Increase the Doppler pulse repetition frequency.
C. Decrease the Doppler pulse repetition frequency.
D. Decrease the spectral Doppler gain.

Answer: B

Explanation:
Aliasing in pulsed-wave Doppler occurs when the sampled Doppler frequency exceeds the Nyquist limit, which is half of the pulse repetition frequency (PRF). This results in an incorrect representation of the blood flow velocities, causing the waveform to wrap around and appear on the opposite side of the baseline. To correct aliasing, the PRF should be increased, which raises the Nyquist limit and allows for accurate measurement of higher velocities without aliasing. Increasing the PRF effectively reduces the likelihood of aliasing artifacts in the Doppler signal.
American Registry for Diagnostic Medical Sonography (ARDMS). Sonography Principles and Instrumentation (SPI) Examination Review Guide.

NEW QUESTION # 76
Which artifact may be caused by incorrect color Dopplergain setting?

A. Aliasing
B. Bleed/Blossoming
C. Twinkle
D. Clutter/Haze

Answer: B

Explanation:
Incorrect color Doppler gain settings can cause the artifact known as bleed or blossoming. When the color Doppler gain is set too high, it can cause the color signal to "bleed" outside the actual boundaries of the blood vessel, leading to an overestimation of the area of flow. This artifact makes it appear as though the blood flow extends beyond the true vessel walls, which can obscure the accurate interpretation of the Doppler image.
References
* ARDMS Sonography Principles and Instrumentation (SPI) Exam Study Guide
* "Diagnostic Ultrasound: Principles and Instruments" by Frederick W. Kremkau

NEW QUESTION # 77
Which adjustment will reduce the artifact in the cystic lesion in image A resulting in image B?

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

Answer: B

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.References:
* American Registry for Diagnostic Medical Sonography (ARDMS) Sonography Principles and Instrumentation guidelines on image optimization techniques.

NEW QUESTION # 78
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