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Exam (elaborations)
SPI Practice Test Questions and Answers Graded A 2024
transducer Electronic pulses from the pulser are applied to the ? amplification, compensation, compression, and demodulation What functions are preformed by the receiver? the ratio of the maximum to the minimum intensity that can be displayed The dynamic range of an ultrasound system is described as? frequency divided by bandwidth How is the QF of a transducer determined? PZT The most common man-made crystal is : travel time and speed Which variables must be known in order to calculat...
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Exam (elaborations)
SPI Mock Exam Questions and answers UPDATED 2024
The direction of the Doppler shift determines: A. the peak velocity of the flow B. the color Doppler hue C. the average velocity of the flow D. the color Doppler luminance -answer- B. the color Doppler hue Color Hue - perceived color used to demonstrate direction (red and blue or positive and negative shift) What is the primary factor that determines the resistance characteristics of the arterial signal displayed by PW Doppler? A. vessel course and location B. branch number C. part it...
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Exam (elaborations)
Edelmen's SPI Exam Review 2024 GRADED A
Sound waves are: a) electric b) mechanical, transverse c) spectral d) longitudinal, mechanical -answers - D The speed of sound of ultrasound in soft tissue is closest to: a) 1,540 km/sec b) 1.54 km/sec c) 1,500 m/s d) 1,540 mm/sec -answers - C Which is not an acoustic variable? a) density b) pressure c) distance d) intensity -answers - D The effects of soft tissue on ultrasound are called: a) acoustic proliferation properties b) dynamic effects c) acoustic pr...
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Exam (elaborations)
SPI Practice Test Questions and Answers Highly Rated 2024
Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution - d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing - d. Damping in a transducer a. reduces the number of cycles in a pulse and increases the quality factor b. increases the number of cycles in a pulse and increases penetration c. causes poor axial and lateral resolution ...
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