Sonographic Instrumentation
Exam Materials
Course Introduction
Sonographic Instrumentation is a comprehensive course that explores the fundamental principles and operation of ultrasound equipment used in medical imaging. Students will gain an in-depth understanding of transducer technology, beam formation, signal processing, and image display techniques. The course covers key concepts such as Doppler ultrasound, system quality control, artifact recognition, and safety standards. Emphasis is placed on optimizing image quality, equipment maintenance, and troubleshooting common technical issues to ensure accurate diagnostic results. Through a combination of theoretical study and practical applications, students will develop the knowledge and skills necessary to effectively employ sonographic instrumentation in clinical practice.
Recommended Textbook
Sonography Principles and Instruments 9th Edition by Frederick W. Kremkau PhD
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7 Chapters
473 Verified Questions
473 Flashcards
Source URL: https://quizplus.com/study-set/1224 Page 2
Chapter 1: Introduction
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/24200
Sample Questions
Q1) Doppler ultrasound measures the movement of ________.
A) tissue
B) blood
C) A and B
D) none of the above
Answer: C
Q2) Pulsed ultrasound transducers can generate only ultrasound pulses.
A)True
B)False
Answer: False
Q3) One pulse of ultrasound generates a single scan line as it travels through tissue.
A)True
B)False
Answer: True
Q4) Color Doppler imaging is superimposed on a gray-scale image.
A)True
B)False
Answer: True
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Page 3
Chapter 2: Ultrasound
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108 Verified Questions
108 Flashcards
Source URL: https://quizplus.com/quiz/24201
Sample Questions
Q1) What is the pulse duration of a four-cycle pulse in a period of 0.5 µs?
A) 0.2 µs
B) 2.0 µs
C) 1.25 µs
D) 0.125 µs
Answer: B
Q2) Calculate the pulse duration for a 3.0 MHz transducer in soft tissue with a four-cycle pulse.
A) 1.2 µs
B) 1.3 µs
C) 12 µs
D) 13 µs
Answer: B
Q3) Propagation speed is primarily determined by the ________ of the medium.
A) density
B) thickness
C) stiffness
D) content
Answer: C
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Page 4
Chapter 3: Transducers
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75 Verified Questions
75 Flashcards
Source URL: https://quizplus.com/quiz/24202
Sample Questions
Q1) Lateral resolution remains consistent at any depth.
A)True
B)False
Answer: False
Q2) The distance from the transducer to the center of the focal region is called the
A) focus
B) path length
C) focal length
D) focal zone length
Answer: C
Q3) Phasing can ________.
A) focus the beam
B) improve the image quality
C) steer the beam
D) All of the above.
Answer: D
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Page 5
Chapter 4: Instruments
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85 Verified Questions
85 Flashcards
Source URL: https://quizplus.com/quiz/24203
Sample Questions
Q1) M (motion)-mode is a presentation of echo depth versus time.
A)True
B)False
Q2) Ultrasound pulse repetition frequency (PRF) is equal to the voltage PRF.
A)True
B)False
Q3) A flat panel display presents image information in the form of ________.
A) vertical lines read out from left to right
B) horizontal lines read out from left to right
C) vertical lines read out from right to left
D) horizontal lines read out from right to left
Q4) The beam former amplifiers typically have ________ dB of gain.
A) 30-60
B) 50-100
C) 60-100
D) 30-100
Q5) The ultrasound instrument is composed of a beam former,a signal processor,an image processor,and a transducer.
A)True
B)False
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Chapter 5: Doppler Principles
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75 Verified Questions
75 Flashcards
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Sample Questions
Q1) Motion toward the transducer demonstrates ________.
A) spectral broadening
B) flow below the baseline
C) a positive Doppler shift
D) an antegrade flow pattern
Q2) Color Doppler displays utilize high frame rates.
A)True
B)False
Q3) If the pressure difference between two points increases,the flow rate also increases.
A)True
B)False
Q4) Which flow type demonstrates a flow velocity that is essentially constant across the vessel?
A) Plug
B) Helical
C) Laminar
D) Parabolic
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Chapter 6: Artifacts
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80 Verified Questions
80 Flashcards
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Sample Questions
Q1) Color Doppler mirror image artifact is commonly displayed when imaging which of the following vessels?
A) Abdominal aorta.
B) Subclavian artery.
C) Internal jugular vein.
D) Common carotid artery.
Q2) High pulse repetition frequencies can result in Doppler range ambiguity artifacts.
A)True
B)False
Q3) The assumptions in the design of sonographic instruments include all of the following except ________.
A) sound travels in a straight line
B) sound travels at different speeds in soft tissue
C) echoes originate from objects located on the beam axis
D) echogenicity is a property of the structure
Q4) Beam width parallel to the scan plane causes partial volume artifact.
A)True
B)False
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Chapter 7: Performance and Safety
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30 Verified Questions
30 Flashcards
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Sample Questions
Q1) The output of some currently available diagnostic ultrasound devices can generate levels that produce hemorrhage in the lungs of laboratory animals.
A)True
B)False
Q2) Which of the following cannot be measured or calculated by a hydrophone?
A) Period.
B) Amplitude.
C) Impedance.
D) Pulse duration.
Q3) The American Institute of Ultrasound in Medicine (AIUM) strongly discourages nonmedical use of ultrasound.
A)True
B)False
Q4) Doppler test objects and flow phantoms are not able to evaluate gate location.
A)True
B)False
Q5) Ultrasound produces a temperature increase as it propagates through tissues.
A)True
B)False
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