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WorksheetsPSE QUIZ BOWL REVIEW PART 3
Total questions: 25
Worksheet time: 22mins
A sonographer adjusts the ultrasound machine to double the depth of view from
5 to 10 cm. If sector angle is reduced to keep the frame rate constant, which of the
following has changed?
AXIAL RESOLUTION
TEMPORAL RESOLUTION
LATERAL RESOLUTION
THE WAVELENGTH
Axial resolution can be improved by which of the following manipulations?
REDUCE BEAM DIAMETER
BEAM FOCUSING
REDUCE GAIN
INCREASE TRANSMIT FREQUENCY
The lateral resolution increases with:
DECREASING TRANSDUCER DIAMETER
REDUCING POWER
BEAM FOCUSING
REDUCING TRANSMIT FREQUENCY
Which of the following will increase the PRF?
REDUCING DEPTH
DECRESING TRANSDUCER FREQUENCY
REDUCING SECTOR ANGLE
REDUCING FILTER
As transducer frequency increases, backscatter strength:
DECREASES
INCREASES
DOES NOT CHANGE
REFRACTS
If amplitude is doubled, intensity is:
HALVED
QUARUPLED
REMAINS THE SAME
TRIPLED
Approximately how many pulses are required to obtain one line of color Doppler
information?
1
100
10
10000
Doppler calculation of aortic valve area is an example of:
LAW OF CONSERVATION OF MASS
LAW OF CONSERVATION OF ENERGY
LAW OF COSERVATION OF MOMENTUM
NONE OF THE ABOVE
The simplified Bernoulli equation is INAPPLICABLE under the following circumstances:
SERIAL STENOTIC LESIONS
LONG, TUBULAR LESIONS
BOTH
NONE OF THE ABOVE
The pulse repetition frequency (PRF) is affected by:
SOURCE OF ULTRASOUND
TRANSMISSION MEDIUM
BOTH
NEITHER
It is sometimes useful to decrease the transducer frequency in obese patients in order to improve image quality, TRUE or FALSE?
TRUE
FALSE
The number of still images displayed sequentially per unit of time.
(a)
A pulse of ultrasound of a given frequency is sent by the transducer followed by a prescribed "listening period" before the transducer senses waves of the same frequency and generates an image.
(a)
M-Mode has better TEMPORAL resolution than 2D imaging, TRUE or FALSE?
TRUE
FALSE
A low PRF is used to image shallow structures, TRUE or FALSE.
TRUE
FALSE
Who coined the name NYQUIST LIMIT?
(a)
LVOT diameter is usually best measured in the parasternal long-axis view in early to mid-diastole using a magnified view, TRUE or FALSE?
TRUE
FALSE
Compute for the stroke volume (mL).
(a)
Compute for QP:QS
LVOT diameter= 2.8 cm
LVOT VTI= 35.1cm
RVOT diameter= 3.1cm
RVOT VTI= 13.1 cm
(a)
Compute for Qp:Qs
LVOT diameter= 1.90 cm
LVOT VTI= 9.7 cm
RVOT diameter= 3.9cm
RVOT VTI= 17.3 cm
(a)
Identify the coronary artery pointed by the arrow in the image.
(a)
Identify the structure pointed by the arrow.
(a)
Identify the pointed structure.
(a)
Identify the pointed structure.
(a)
What structure is indicated by the *?
(a)
