Radiology Yearclub revision event Flashcards
what colour is fat on xray
grey
how many ribs should be seen on good xray
at least 6 anterior ends
why does tension pneumothorax kill
kinks IVC and SVC
where on chest xray do we look to check NG tube
carina
veil like opacity on CXR
left upper lobe collapse
signs of HF on CXR
Alveolar oedema
kerley B lines
Cardiomegaly
Dilated upper lobe vessels
pleural Effusion
which hemidiaphragm is higher
right
blunting of costophrenic angles suggests ?
pleural effusion
(and rarely lung hyperinflation due to COPD)
NG tube placement
should remain in midline and tip should be approx 10cm beyond the gastro oesophageal junction
review areas on CXR
lung apices
retrocardiac region
behind diaphragm
peripheral regions of lungs
hilar regions
bones and soft tissue
what might you see on CXR of hyperexpanded lungs in COPD?
flattened diaphram
first line imaging for an emergency brain thing that you need done fast!
CT
white matter on CT
black lol (darker than the dark matter)
main lobes on brain CT to know
frontal
temporal
parietal
occipital
cerebellar
stroke gold standard imaging
non-contrast CT
what colour is ischaemia on CT
dark
PCA stroke - what is affected
vision
ACA stroke - what part of body affected
lower limb
MCA stroke - what part of body affected
arms, face ???
what colour is acute blood on scan
white
extra axial haemorrhages
extradural
subdural
subarachnoid
what fruit does extradural haemorrhage look like on scan
lemon
extradural haemorrhage - trauma to what artery?
middle meningeal artery (pterion)
subdural haemorrhage most common cause
fall (elderly and alcoholics)
NAI in kids
RTA in young adults
subdural haemorrhage - what fruit does it look like on scan
banana
subarachnoid haemorrhage on scan
seen as hyperdense material in circle of willis
85% of subarachnoid haemorrhages are due to what?
berry aneurysm
scan to look for berry aneurysm in subarachnoid haemorrhage
CT cerebral angiography
tonsillar herniation in clinical term
coning
spidery bit in middle of brain white - what’s the diagnosis
subarachnoid haemorrhage
glioblastoma on scan
central necrotic area (dark on CT) with SURROUNDING AREA OF OEDEMA
