Fourier spectral analysis - Study guides, Class notes & Summaries

Which of the following is not a potential cause of artifact and diagnostic imaging? A. Operator error B. equipment malfunction C. Patient motion D. Ultrasound physics E. none of the above - ️️E. none of the above The four choices, A through D, represent the primary explanations of artifacts commonly seen in diagnostic ultrasound. What is the meaning of the term "analysis" in the context of spectral analysis of Doppler signals? A. Building a sophisticated signal from component...

ARDMS (RVT) Ultrasound Vascular Registry Review Questions with 100% Correct answers Ultrasound Vascular Registry Review Questions with 100% Correct answers What is the first branch of the aortic arch? Innominate artery/ Brachiocephalic Name the three branches of the aortic arch? a. Innominate artery/ Brachiocephalic b. Lt CCA c. Lt Subclavian artery The radial artery runs on what side of the forearm? Lateral side The radial artery branches to form what part of the palmar arch? Supe...

In general, mold modifications are as follows: - Venting affects lows, damping the midrange and horn effects boost highs. Basic verification involves: - checking MCL and UCL in quiet and noise. Sound field is - a controlled environment The configuration and height of the tympanogram can be a factor in deciding the proper matrix for the fitting of a hearing aid: - A high Type A tells us to decrease the output by 2-3 dB You cannot use feedback checks when - checking the telephone coil ...

Physics - Doppler Instrumentation and Hemodynamics Exam C. Gain What Doppler control should be adjusted to optimize this Doppler spectral waveform? A. Wall filter B. Packet size C. Gain D. Pulse repetition frequency E. Baseline C. Frequency shift is increased Which of the following best describes the Doppler frequency shift when you encounter high velocities within a vessel? A. Amplitude is increased B. Power is increased C. Frequency shift is increased D. Bandwidth is decreased ...

Physics - Doppler Instrumentation and Hemodynamics Exam C. Gain What Doppler control should be adjusted to optimize this Doppler spectral waveform? A. Wall filter B. Packet size C. Gain D. Pulse repetition frequency E. Baseline C. Frequency shift is increased Which of the following best describes the Doppler frequency shift when you encounter high velocities within a vessel? A. Amplitude is increased B. Power is increased C. Frequency shift is increased D. Bandwidth is decreased ...

IHS Exam Questions and Answers Already Passed In general, mold modifications are as follows: Venting affects lows, damping the midrange and horn effects boost highs. Basic verification involves: checking MCL and UCL in quiet and noise. Sound field is a controlled environment The configuration and height of the tympanogram can be a factor in deciding the proper matrix for the fitting of a hearing aid: A high Type A tells us to decrease the output by 2-3 dB You cannot use feedback checks when ...

SPI Ultrasound Physics Review Exam - Questions and Answers Relates to likelihood of harmful bio effects from cavitation Mechanical index Predicts maximum temperature increase Thermal index Measures output intensity of the beam Hydrophone Region of increased brightness due to higher intensities in focal zone Focal banding Occurs when sound travels through a medium with a lower attenuation rate than the surrounding tissue Enhancement Beam travels through an area of high attenuation Shadowing Bea...

IHS Exam Questions and Answers 100% Pass In general, mold modifications are as follows: - Answer- Venting affects lows, damping the midrange and horn effects boost highs. Basic verification involves: - Answer- checking MCL and UCL in quiet and noise. Sound field is - Answer- a controlled environment The configuration and height of the tympanogram can be a factor in deciding the proper matrix for the fitting of a hearing aid: - Answer- A high Type A tells us to decrease the output by 2-3 d...

In general, mold modifications are as follows: - Venting affects lows, damping the midrange and horn effects boost highs. Basic verification involves: - checking MCL and UCL in quiet and noise. Sound field is - a controlled environment The configuration and height of the tympanogram can be a factor in deciding the proper matrix for the fitting of a hearing aid: - A high Type A tells us to decrease the output by 2-3 dB You cannot use feedback checks when - checking the telephone coil ...

Source filter model (4) - correct answer ~ the larynx serves as the sound source and its output is then sent into the vocal tract which filters it. ~ larynx on its on cant produce any sound unless there is pressure driving it ~ pressure comes from the lungs ~ vocal tract doesn't just filter but resonates or enhances some sounds Pitch (2) - correct answer Stretch the vocal folds to increase their ...