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Breast: Breast Sonography - Ultrasound Registry Review Exam Q’s and A’s
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Breast: Breast Sonography - Ultrasound Registry Review Exam Q’s and A’s
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Breast: Breast Sonography -Ultrasound Registry Review Exam Q’s
and A’s
What patient position redistributes breast tissue and centers the nipple? - -
Posterior oblique
-What patient position puts the breast tissue in a similar position as tissues
displayed on mammography? - -Posterior oblique
-What position is best to scan the medial breast? - -supine
-What position is best to scan the lateral breast? - -posterior oblique
-LPO is used to scan which breast? - -the right
-RPO is used to scan which breast? - -left
-What patient position is helpful during ultrasound that will mimic a mass
found on a CC view of mammography or MRI? - -sitting upright
-Why should a patient suspicious for debris within a breast cyst be scanned
in multiple positions? - -to evaluate changes in the debris level with changes
in position
-What object should be used when evaluating superficial tissues? - -stand
off pad
-Real time imaging produces a frame rate of - -15 frames/second to avoid
lagging
-increased probe frequency causes - -better resolution, BUT decreased
penetration
-What transducer is required for the best axial AND lateral resolution? - -
10MHz linear
-What is the elevational focus of high frequency transducers? - -1-2cm
-Why is a linear array transducer preferred? - -to avoid beam divergence
artifact
, -Visualization of what structure indicates proper imaging depth of a breast
on US? - -pectoralis muscles
-What is an appropriate depth to image the breast on US? - -3-6cm
-A rectangular shape FOV eliminates - -divergence artifact
-While trapezoidal FOV increases imaging area, it decreases - -lateral
resolution in the far field
-What does a targeted exam evaluate? - -only a specific area of the breast
-What does a survey exam evaluate? - -the entire breast for abnormalities
-Breast sonography is NOT what? - -a screening tool for breast cancer!
-When would a curvilinear array be needed? - -1. deep structures
2. pathology is too large for the linear FOV
3. imaging large breasts
-What is a pitfall of using a curvilinear array? - -measurements may be
skewed by beam divergence
-Which pathologies should change shape with compression? (2) - -1. benign
cysts
2. lipomas
-What pathologies will not change shape with compressions? - -
malignancies
-Compression of scar tissue will decrease - -tissue thickness and ultimately
posterior shadowing
-When might you need to reduce probe pressure? - -visualizing blood flow in
superficial masses and veins
-What type of mass is more than 30% compressible? - -fatty lesions: a
normal lobule or a lipoma
-What is ballottement? - -alternating compression and release
-When can ballottement be helpful? - -demonstrating the mobility of echoes
in ducts or cysts
-What are maneuvers for evaluating the nipple or ductal system? (4) - -1.
peripheral compression
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