5.2 chest x ray Flashcards
(27 cards)
How much radiation to get bone marrow syndrome / aplastic anemia
10 Gy
Background radiation
2.4 mSv/year
Radiation for chest x ray
.1 mSv = 2 weeks background radiation
CT radiation
5 mSv = 2 year background
What shapes the beam
Diaphragm
What gets rid of low energy non diagnostic radiation
Aluminum window
Adequate inspiration
5-6 anterior ribs (the diagonal ones)
Where are most lung cancers
Upper right lobe
ABCDE
Airway (trachea), abdomen, spices, costophrenic angles
Bones, blood
Cardiac
Diaphragms (and pleura)
Everything else (lungs)
Fluffy, wool-like appearance
Alveolar changes
Lines, dots, and holes like giraffe
Interstitial changes
Filled air spaces
Alveolar changes
Thickening of interlobular area
Interstitial changes
Often segmental or lobar
Alveolar changes
When alveoli are filled with abnormal fluid, but bronchi still contain air
Air bronchogram
Drinking straw in apple
Air bronchogram
What and where are Kerley lines
A - apices
B - bases
C - central
If CHF, which Kerley line do you see first
B lines
Pneumonia
Alveolar
Hemorrhage
Alveolar
Transudate
Alveolar
Malignancy
Alveolar or interstitial
Lymphatic
Interstitial
Pulmonary veins (like LV failure)
Interstitial
