Imaging of the brain and spinal cord Flashcards
Which imaging plane is this?
Sagittal
Match this to X-ray, CT and MRI.
When would an x-ray of the face or head be indicated?
As part of an assessment in suspected physical abuse in children.
Mid face injuries.
Which sinus on a facial x-ray is usually asymmetrical?
Frontal
Which anatomical planes are used in CT and MRI?
Sagittal
Coronal
Transverse
What clinical presentations would require a CT head?
Significant brain injury
Stroke
Severe sudden headache
Suspected brain tumour
When would an MRI head be indicated?
Stroke confirmation
Assess tumour
Investigate chronic headache and seizures
Which anatomical plane is this?
Transverse/Axial
There are two main sequences used in MRIs. What are they?
T1
T2
On an MRI brain, in T1 + T2 sequence, which would show fluid as black?
T1 - fluid black
T2 - fluid white
Why would a FLAIR sequence be used on an MRI?
To suppress the signal from fluid (e.g. CSF) to detect superficial brain lesions.
Would a CT or MRI show the bony anatomy of the head better?
CT
When a CT head is done, which area of the head is usually avoided?
Orbits
Which imaging technique is best used to assess the cerebrum?
MRI
Are meninges usually seen on an MRI or CT scan?
No, except when there are infoldings e.g the falx
Diffuse dural enhancement can be commonly related to what?
Prior procedure, infection or inflammation.
