The ASCO classification describes the phenotypic features of a stroke.
A = atherosclerosis
S = small vessel disease
C = cardiac source
O = other cause
|
Descriptor
|
Grade
|
|
present with definite causation
|
1
|
|
present but uncertain causation
|
2
|
|
feature present but causation unlikely
|
3
|
|
no evidence after thorough investigation
|
0
|
|
insufficient work-up
|
9
|
Level of evidence:
A: direct demonstration by gold standard
B: indirect evidence or demonstration by less sensitive or specific test/criteria
C: week evidence
Reporting is done by concatenating each letter and its respective score, such as A1-S0-C0-O3.
