Table 3:

Discrepant cases (scores of 4 or 5)

Discrepancy Category	Discrepancy Score (4 or 5)	Imaging Study Type
Vascular^a	5	MR brain
Vascular^a	4	CT angiogram
Vascular^a	4	MR brain
Vascular^a	4	MR brain
Vascular^a	4	MR brain
Vascular^a	4	MR brain
Vascular^a	4	MR venogram
Congenital	5	CT brain
Congenital	5	CT brain
Neoplasm^b	5	CT brain
Neoplasm^b	5	MR brain
Neoplasm^b	5	MR brain
Neoplasm^b	4	CT brain
Neoplasm^b	4	CT brain
Neoplasm^b	4	MR brain
Neoplasm^b	4	MR brain
Neoplasm^b	4	MR neck
Neoplasm^b	4	MR spine
Artifacts	5	CT brain
Artifacts	4	CT brain

↵a Aneurysms or venous clots.
↵b New lesions or the extent of disease progression.