Radiology Flashcards
what are the five densitiies in radiology
Air Fat Soft tissue/Water Calcification Metal
consolidation
filling of alveoli with junk
An exudate or other product of disease that replaces alveolar air, rendering the lung as solid.” A type of opacity Air bronchograms Advances to a fissure Like a cloud or cotton-ball
interstitial: reticulation and nodular
holding up the bronchial tree
CT throughout the lung
atelectasis
volume loss within the alveoli
“Reduced inflation of all or part of the lung”
Decreased lung volume with focal increased opacity
what is opacity
“Any area that preferentially attenuates the x-ray beam and therefore appears more opaque than the surrounding area”
An area that is more white
what are the three subdivisions of the interstitial
Bronchovascular
Parenchymal (intralobular)
Subpleural
what are nodules and mass
Rounded opacities measuring up to 3 cm and greater than 3 cm, respectively.
what is the silhouette sign
?
how do you read a chest x-ray
Be systematic
Judge the setting
Must know: Indication Specific study Comparison films Adequacy of technique
Must do:
Describe findings
Give Summary to include DDx and best Dx
Disposition
what is the CXR anatomy frontal
trachea
right paratracheal strip
-thin border between the trachea
Carina
left mainstem bronchus
-more horizontal than right mainstem bronchus
why is the right paratracheal stripe important
site where adenopathy likes to occur/collect and thickens the line
what is the normal anatomy on the CXR lateral
trachea
right upper lobe bronchus
carina
left mainstem bronchus
what are the structures of the mediastinum we can identify on the left ?
on the right?
Left “3 Moguls”:
Aortic Arch
MPA (main pulmonary artery)
Left Ventricle
Right
SVC
Hilum
Right Atrium
what does the azygoesophageal recess indicate
if it is bulging out
hiatal hernia
what are the cxr anatomy frontally of the mediastinum
Lines/Stripes
Junctional Lines
Azygoesophageal Recess
