radiology aquifer 1
density is meased in: - ANShoundsfield units
____________- is where is the window is centere - ANSlevel
on an xray, patient should be in inspiration which means diaphragm should be at : - ANS8-10
posterior, or 5-6 anterior
What is an air bronchogram? - ANStubular outline of an airway made visible by filling of the
surrounding alveoli by fluid or inflammatory exudates (blood water pus protein) the alveoli are
filled withsomething instead of air.
when do you NOT see airbronchograms - ANSemphysema, pulm fibrosis
when do you do follow up xray on pna patients? - ANS- All patients over 40
- Recurrent pna's
- Non resolving symptoms
- Current/former smokers
difference between ground glass and consolidation - ANSin ground glass you can still see blood
vessels of CT
CT has _____ x as much radiation as a CXR - ANS1000-2500x
options for diagnosing pleaural effusion - ANSipsilateral lateral decub CXR, CT, US, MRI
ACR appropraite - ANS7-9
ACR may be appropriate - ANS4-6
ACR not appropriate - ANS1-3
Silhouette sign - ANS= MISNOMER! silhouette sign is actually loss of the silhouette, i.e. loss of
a border between two areas, i.e. L or R heart border; usually indicates overlying consolidation
SPINE SIGN - ANSDescribe this condition: Opacification of vertebral bodies in the lower
thoracic spine
Vertebrae normally become darker caudally
Accumulation of fluid or mass increases density
Result is opacification of the vertebral column
density is meased in: - ANShoundsfield units
____________- is where is the window is centere - ANSlevel
on an xray, patient should be in inspiration which means diaphragm should be at : - ANS8-10
posterior, or 5-6 anterior
What is an air bronchogram? - ANStubular outline of an airway made visible by filling of the
surrounding alveoli by fluid or inflammatory exudates (blood water pus protein) the alveoli are
filled withsomething instead of air.
when do you NOT see airbronchograms - ANSemphysema, pulm fibrosis
when do you do follow up xray on pna patients? - ANS- All patients over 40
- Recurrent pna's
- Non resolving symptoms
- Current/former smokers
difference between ground glass and consolidation - ANSin ground glass you can still see blood
vessels of CT
CT has _____ x as much radiation as a CXR - ANS1000-2500x
options for diagnosing pleaural effusion - ANSipsilateral lateral decub CXR, CT, US, MRI
ACR appropraite - ANS7-9
ACR may be appropriate - ANS4-6
ACR not appropriate - ANS1-3
Silhouette sign - ANS= MISNOMER! silhouette sign is actually loss of the silhouette, i.e. loss of
a border between two areas, i.e. L or R heart border; usually indicates overlying consolidation
SPINE SIGN - ANSDescribe this condition: Opacification of vertebral bodies in the lower
thoracic spine
Vertebrae normally become darker caudally
Accumulation of fluid or mass increases density
Result is opacification of the vertebral column
