Specular reflectors - Study guides, Class notes & Summaries

Which artifact is illustrated by this image? a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor 00:32 01:17 What is the most appropriate action for the sonographer to take when receiving a verbal order for an exam? a) Deny performance of the exam until a written request is received b) Seek approval from supervisor c) Verbally repeat the request back ...

ARDMS SPI EXAM QUEATIONS AND ANSWERS |PRE-GRDED A+ | 2024 EDITION sound waves are sent into the body and the returning wave is timed to determine the reflectors distance from the transducer – ANSWER pulse-echo technique most common element material – ANSWER lead zirconate titanate (PZT) pressure is created when voltage is applied to a material and electricity is created when pressure is applied to the material – ANSWER piezoelectric principle number of pulses produced in...

Physics Doppler Exam Practice Questions and Answers Doppler Effect - ANSWER-An apparant change in frequency as a result of a change in wavelength caused by motion relative to observer Proportional - ANSWER-What is the relationship between doppler shifted frequency and velocity? Doppler Shift - ANSWER-Difference in frequency between the frequency that was transmitted and frequency that was received. Detected frequency is lower than transmitted frequency - ANSWER-What results in a negative ...

The typical frame rate of an Ultrasound system is? - correct answer Between 30 Hz and 100 Hz Temporal resolution is synonymous with frame rate. Typical frame rates in imaging systems are 30-100 Hz. - correct answer The temporal resolution or frame rate = 1/(time to scan 1 frame). Frame rate can drop down to 5 Hz. Pulse duration is related to bandwidth how? - correct answer Pulse Duration = 1 / Bandwidth Specular reflectors have physical dimensions that are what size in relation to the w...

Which artifact is illustrated by this image? - correct answer a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? - correct answer a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor What is the most appropriate action for the sonographer to take when receiving a verbal order for an exam? - correct answer a) Deny performance of the exam until a written request is received b) Seek approval from supervisor c) Verbally r...

Davies! SPI QUESTIONS AND ANSWERS GRADED A When you adjust pulse repetition frequency, you are changing: Correct Answer: The number of pulses per second When sound strikes a specular reflector at an oblique angle, the angle of reflection is: Correct Answer: Equal to the angle of incidence Which of the following describes diffuse reflection? Correct Answer: The reflected beam is scattered in various directions Which sound beam frequency would exhibit the greatest intensity loss wit...

SPI Practice (ARDMS A & B) Exam 79 Questions with Verified Answers C - CORRECT ANSWER What is dynamic aperture? A.aperture that varies with transmit frequency B.aperture that decreases as a function of time C.aperture that increases with increasing focal length D.aperture that changes as a function of frame rate A - CORRECT ANSWER to which acoustic variable is penetration depth inversely related? A.frequency B.wavelength C.period D.propagation speed B - CORRECT ANSWER which im...

Which artifact is illustrated by this image? - Answer a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? - Answer a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor What is the most appropriate action for the sonographer to take when receiving a verbal order for an exam? - Answer a) Deny performance of the exam until a written request is received b) Seek approval from supervisor c) Verbally repeat the request back t...

The typical frame rate of an Ultrasound system is? - Answer- Between 30 Hz and 100 Hz Temporal resolution is synonymous with frame rate. Typical frame rates in imaging systems are 30-100 Hz. - Answer- The temporal resolution or frame rate = 1/(time to scan 1 frame). Frame rate can drop down to 5 Hz. Pulse duration is related to bandwidth how? - Answer- Pulse Duration = 1 / Bandwidth Specular reflectors have physical dimensions that are what size in relation to the wavelength? - Answer- ...

When you adjust pulse repetition frequency, you are changing: Correct Answer: The number of pulses per second When sound strikes a specular reflector at an oblique angle, the angle of reflection is: Correct Answer: Equal to the angle of incidence Which of the following describes diffuse reflection? Correct Answer: The reflected beam is scattered in various directions Which sound beam frequency would exhibit the greatest intensity loss with increasing depth? Correct Answer: 10 mhz (t...