Ch 10 Correlating with Mammography Flashcards
What are the standard screening views with mammography?
Craniocaudal (CC) + medial lateral oblique (MLO)
How is u/s correlated with mammography?
Diagnostic vs screening
What are the supplementary/additional views with mammography?
-Spot compression
-Magnification
-90 degrees lateral
(we use these views for problem solving or for additional info)
What is craniocaudal (CC) view?
-Top to bottom view of breast
-X-ray is vertical over a compressed breast
-The side marker is placed to the lateral side
What is the downside to craniocaudal imaging?
No depth info
What is the medial lateral oblique (MLO) view?
-Beam passes from superomedial to inferolateral (oblique angle)
-View shows the greatest amount of UOQ breast tissue + axillary tail
-Side marker placed near axilla
What is the advantage to the MLO view?
View shows the greatest amount of UOQ breast tissue + axillary tail
What is the disadvantage to the MLO view?
-May exclude some posterior-medial tissue
-Mass may appear higher or lower on this view than it actually is due to the oblique angle
What main piece of info do we gain from the additional true 90 degree lateral (ML) view?
Depth of mass
The additional true 90 degree lateral view provides us what info?
-Depth of mass (bolded)
-Helpful for mass localization
-Can demonstrate air or fat fluid levels
When would the true 90 degree lateral view be required?
If a mass is detected on a screening mammogram
What is triangulation?
A technique for localizing lesions seen on at least 2 views on 2D mammography
Medial masses can lie ___ in the breast than shown on the MLO view?
Higher
Lateral masses can lie ___ in the breast than shown on the MLO view?
Lower
___ lesions especially tend to lie higher/lower in the breast than shown on the MLO view?
Peripheral lesions near 3:00 or 9:00 o’clock
