C
What is dynamic aperture?
A.Aperture that varies with transmit frequency
B.Aperture that decreases as a feature of time
C.Aperture that increases with increasing focal period
D.Aperture that changes as a characteristic of body rate
A
to which acoustic variable is penetration depth inversely associated?
A.Frequency
B.Wavelength
C.Length
D.Propagation velocity
B
which imaging mode requires a broadband transducer?
A.Continuous wave doppler
B.Pulsed wave doppler
C.Shade drift imaging
D.Harmonic imaging
B
what's the doppler shift frequency?
A.Recieved ultrasound frequency extended through the transmitted ultrasound frequency
B.Distinction among the transmitted ultrasound frequency and the acquired ultrasound
frequency
C.Sum of the transmitted and received ultrasound frequencies
D.Ratio of the transmitted ultrasound frequency to the obtained ultrasound frequency
A
what's the capability impact of growing the heart beat repetition frequency(PRF)?
A.Depth ambiguity
B.Decreased body rate
C.Poor spatial decision
D.Decreased penetration
, B
what is an advantage of the use of pulsed wave doppler in comparison to non-stop wave
doppler?
A.Higher echo sensitivity
B.Capacity to pick pattern intensity
C.Decreased display of aliasing
D.Improved temporal resolution
D
what impacts the beam width in the near field?
A.Pulse repetition frequency
B.Pulse period
C.Frame charge
D.Transducer aperture
D
what's the advantage of using pulsed-wave doppler as opposed to non-stop-wave doppler?
A.Allows measurement of higher velocities
B.Increases range ambiguity
C.Reduces the potential for aliasing
D.Gives intensity specificity
D
which parameter is goal organization C comparing based at the image?
A.Useless zone
B.Dynamic range
C.Axial resolution
D.Horizontal distance accuracy
A
In this image, which goal institution is used to assess dead region?
C
which ultrasound parameter immediately influences an ultrasound beam's depth?
A.TGC
B.Operating frequency
C.Output energy