CT Head Flashcards
1
Q
Subdural haematoma
A
Crescenteric
High density (blood)
Cerebral veins
+/- mass effect > sulci effacement on ipsilateral side
2
Q
Axial
A
Aka transverse
Splits body into head and toe ends
3
Q
Sagittal
A
Plan parallel to sagittal sulcus. It divides body into right and left
4
Q
Coronal
A
Divides body into front and back
5
Q
Contrast medium
A
Enhances mass or cystic lesions - appear high density on contrast CT (white)
6
Q
Blood
A
High density
WHITE
7
Q
Mass
A
Low density
BLACK
8
Q
CT head systematic approach
A
- Compare right and left
- Midline shift
- Ventricles - hydrocephalus
- Basilar cisterns - SAH
- Brain parenchyma - inc/dec density lesions
- Paranasal sinuses - fluid
9
Q
Extradural
A
Lentiform
Can’t cross suture lunes
High density (blood)
Middle meningeal artery
