Mammo 4: Positioning Flashcards
(42 cards)
To promote thinning of the breast
tissue for coned views, Dr. Arthur
Hixson devised a method to apply
compression to both the top and
bottom aspects called
Mammospot
The ____ projection will best visualize the subareolar, central, medial, and
posteromedial aspects of the breast and is one of two complementary projections that make up the routine mammographic study
craniocaudal
The ____ may be limited in reaching extreme posterolateral structures
XCCL
this position will not spread the glandular tissue and “open up”
the structures in the same way as a 20-degree MLO
XCCL
best visualizes central and medial
abnormalities high on the chest wall.
elevated craniocaudal projection
This projection is an option when an abnormality presents in the superior
aspect of the MLO and lateral projections but is absent from the standard CC projection
Elevated Craniocaudal Projection
may be useful in the nonconforming patient, or in trouble
shooting abnormalities high on the chest wall that slip from view on the
routine CC projection.
The Caudal-Cranial Projection
• It is used minimally, as it is uncomfortable for both the technologist and the patient, and often overlapping of the abdominal tissue prevents visualization of the breast tissue this view is designed to see
The Caudal-Cranial Projection
The ___ projection best visualizes the posterior and upper-outer quadrants of the breast.
MLO
This position is preferred as the complementary second projection in the routine two-view mammogram because it is effective in visualizing the posterior and upper-outer quadrant breast tissue
MLO
best demonstrates the upper-inner quadrant (UIQ) and lower-outer
quadrant (LOQ) of the breast, free of superimposition of the upper-outer and
lower- inner tissue.
SIO
A _____ also provides a perpendicular
projection to the MLO and may be useful in distinguishing pseudomass from carcinoma
45-degree SIO
In the nonconforming patient, such as a patient with severe pectus excavatum, to image breast tissue not evident on the CC and MLO projections, a ____ provides a means to capture this lost tissue
45° SIO
For women who have encapsulated implants, and using the Eklund modified compression technique is not feasible, a _____ serves as a third projection to image the UIQ and LOQ hidden on the CC and MLO views.
60° SIO
The _____ demonstrates the entire
glandular island with less superimposition than the two-projection mammogram
20° oblique
This view is especially useful for visualizing the upper-outer quadrant of the breast, however, it has many applications
20° oblique
The ____ projection spreads the glandular tissue, separating
overlapped structures. It is useful as a third projection when seeking further
evidence about a possible abnormality imaged on the MLO projection.
20° oblique
is also useful as a third view for both the unaffected and affected breasts in patients who have had breast cancer
20° oblique
may be used to better demonstrate the
entire axillary tail, glandular breast tissue very high in the axilla that is perhaps inadequately imaged on the
MLO, as well as most of the lateral aspect of the breast.
The Axillary Tail (AT)
It is performed very much like the axillary view (AX), with more emphasis placed on the breast tissue than on the axillary tissue
The Axillary Tail (AT)
The _____ is useful as a replacement view for the MLO in those patients who have a pacemaker, or have had
previous open heart surgery where skimming the scar with the compression paddle could cause discomfort, and other nonconforming situations
Lateromedial Oblique (LMO)
The ____ projection is useful for
stereotactic biopsy positioning.
The Inferomedial–Superolateral Oblique (ISO)
This projection imitates the SIO but allows access to the inferior aspect of the breast to achieve shortest skin to abnormality distance and maintain stroke margin during stereotactic biopsy
The Inferomedial–Superolateral Oblique (ISO)
Completing the ____ projection with the nipple in profile provides a true
representation of breast structures to the nipple, and is useful for localization
of nonpalpable lateral abnormalities.
Mediolateral (ML) Lateral Projection