Adams et al reported a contusion index to describe cerebral contusions at autopsy. This requires grading of contusion injuries in various lobes and regions of the brain.
Parameters:
(1) surface contusions
(2) maximum parenchyma depth of contusions
Parameter
Finding
Points
surface contusion
no contusion
0
localized to 1 gyrus or 2 adjacent gyri
1
involves much of 1 surface of a lobe
2
involves more than 1 surface of a lobe
3
parenchymal depth
no contusion
0
involves cortex but less than full thickness
1
involves full thickness of the cortex
2
extends into digitate white matter
3
extends into deep white matter
4
score for a lobe or region =
= (grade for surface) * (grade for parenchymal depth)
Interpretation:
• minimum score: 0
• maximum score: 12
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