ARRT BREAST SONOGRAPHY EXAM

ARRT BREAST SONOGRAPHY EXAM

COMPLETE ANSWERS 100% CORRECT (LATEST 2024 / 2025 )

• Which method of patient positioning is best for evaluating the medial aspect of the breast?:

Supine

• The two-handed technique is used to image:: The main breast duct and nipple

Two hands are required as the nipple is rolled over the sonographer's index finger of one hand while using the other hand to scan along the long axis of the main duct through the nipple

• Which of the following transducers would be the best choice for breast imaging:: 10 MHz

Linear array transducers allow for imaging perpendicular to the chest wall and provide a large rectangular field of view, including good visualization in the near field. They are easier to keep in direct contact with the skin, and measurements are reliable because there is no beam divergence along the edges. Linear array transducers offer variable frequency options and narrow and variable focus selections

• Selecting multiple focal zones will:: Decrease frame rate

Frame rate can be affected by changing the number of focal zones, depth of image, and image size.

• When viewing a mammogram, one always sees the marker in the region toward the::

Axilla

• If a breast sonographic image is labeled, Rt. AR 2:00 1A, the area described is:: 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:: In the LATERAL breast

The mammographic marker CC ( craniocaudal) is always placed near the axilla, which is lateral to the breast; therefore, the mass would be located more toward the lateral aspect of the breast

• A transducer that can operate multiple frequencies is said to have:: Broad bandwidth

Bandwidth refers to the spectrum of frequencies (high and low) emitted by a transducer

• All of the following statements about high-frequency transducers are true EXCEPT::

Sound travels fast 1 / 2

For practical purposes, we assume that sound travels through soft tissues at the average speed of 1540 m/sec

9. Decreasing depth will: Increase frame rate

Frame rate can be affected by changing the number of focal zones, depth of range, and image size

• Increasing the overall gain control will:: Cause artifactual echoes

Increasing the overall gain affects the entire image and causes vessels and ducts to fill in with the echoes

• Which of the following allows for better demonstration of small, tortuous vessels?: Power

Doppler

Power-Doppler is less angle-dependent and more sensitive to low-flow states. It re- lies on the number of moving red blood cells more than their velocity. It demonstrates perfusion but provides no information related to direction of flow.

• Which of the following affect(s) the frame rate?: Number of focal zones and Size of image

Frame rate can be affected by changing the number of focal zones, depth of image, and image size

• Ideally, the elevational focus for breast imaging should be fixed at:: 1.5 cm
• An increase in the intensity of echoes beneath a structure is called:: Enhancement
• Of the following, which would NOT be a good indication for performing a breast

sonogram?: Evaluate a mass for microcalcifications

• When setting the TGC (Time gain compensation) control for breast imaging, what tissue

should be a medium level of gray?: Fat

All breast tissues are compared to fat since fat should exhibit a mid level shade of gray on sonography

17. The lactiferous ducts are best seen when scanning: Radial

Lactiferous ducts converge toward the nipple into a main duct. Radial scanning allows for imaging these duct branches in the long axis.

• / 2