QUESTIONS AND CORRECT ANSWERS
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Which method of patient positioning is the best for evaluation the
medial aspect of the breast ? Correct Answer Supine
The two-handed technique is used to image : Correct Answer
The main breast duct and nipple
Which of the following transducers would be the best choice for
breast imaging ? Correct Answer 10 MHz linear array
Selecting multiple focal zones will : Correct Answer Decrease
frame rate
When viewing a mammogram, one always sees the marker in the
region toward : Correct Answer Axilla
If a breast sonographic image is labeled "Rt. AR 2:00 1A", the
area described is : Correct Answer Antiradial scan of the right
breast, upper inner quadrant near the nipple, under the skin
When viewing a mammogram, a mass is marked near the CC
marker in the right breast. This will indicate to the sonographer
that the mass is located : Correct Answer In the lateral breast
A transducer that can operate at multiple frequencies is said to
have : Correct Answer Broad bandwidth
All of the following statements about high-frequency transducers
are true : Correct Answer - Axial resolution is increased
- Lateral resolution is increased
,- Sound penetration is decreased
- Best for breast imaging
The following statement about high-frequency transducers is false
: Correct Answer Sound travels faster
Decreasing depth will : Correct Answer Increase the frame rate
Increasing the overall gain control will : Correct Answer Cause
artifactual echoes
What allows for better demonstration of small, tortuous vessels ?
Correct Answer Power doppler
What affects the frame rate ? Correct Answer Number of focal
zones and size of image
Ideally, the elevational focus for breast imaging should be fixed at
: Correct Answer 1.5 cm
An increase in the intensity of echoes beneath a structure is
called : Correct Answer Enhancement
What is not a good indication for performing a breast sonogram?
Correct Answer Evaluate a mass for microcalcifications
When setting the TGC control for breast imaging, the following
tissue should demonstrate a medium level of gray. Correct
Answer Fat
The lactiferous ducts are best seen when scanning : Correct
Answer Radial
The orthogonal (defined as perpendicular) view from the
longitudinal scan is : Correct Answer Transverse
,Adequate penetration of the breast is determined by imaging the :
Correct Answer Pectoral muscles
If a mass is isoechoic with surrounding tissues, what maneuver
would accentuate the mass to make it show up better ? Correct
Answer Apply harmonics
What transducer feature would not be good for breast imaging ?
Correct Answer Curved linear array format
Lateral resolution is best at the : Correct Answer Focal zone
Which technique would eliminate useful artifacts such as posterior
enhancement and shadowing? Correct Answer Spatial
compound imaging
According to AIUM standards, all of the following information
should be indicated on sonographic images : Correct Answer -
Patient's name / ID #
- Patient's age
- Facility name
- Date
What information should not be indicated of sonographic images
? Correct Answer Patient's social security number
What is considered an appropriate annotation method for breast
imaging ? Correct Answer - Side / Quadrant
- Clock face
- 123-ABC
What statement would be false when considering doppler artifacts
? Correct Answer If the gain and filter settings are too low, it can
cause noise
, What statements are true when considering doppler artifacts ?
Correct Answer - If the filter setting is too high, it will inhibit the
ability to detect low-velocity blood flow.
- A PRF / velocity scale that is too low will cause aliasing.
- If the doppler angle is perpendicular to flow, no flow will be
detected.
- Spectral mirroring causes a duplication of the waveform on the
opposite side of the baseline
What is true about propagation speed error ? Correct Answer - If
the propagation speed is slower than 1540 m/sec, posterior
echoes will be displayed on he sonogram deeper than they
actually are.
- If the propagation speed is faster than 1540 m/sec, reflectors will
appear closer to the transducer than they actually are.
The brightness of echoes on an ultrasound image is affected by :
Correct Answer - Overall gain
- Power output
- Dynamic range
- TGC
The brightness of echoes on an ultrasound image is not affected
by : Correct Answer Transducer frequency
What would not be part of the examination preparation? Correct
Answer Present the informed consent to the patient for signature
What would be part of the examination preparation? Correct
Answer - Obtain pertinent clinical information from the patient.
- Explain the examination to the patient.
- Review the pertinent correlative imaging tests.
- Know the indication for the exam.