. 2021 May 7;34(3):637–646. doi: 10.1007/s10278-021-00457-y

Table 1.

Stroke findings in different examinations for emergent management of acute ischemic stroke

	No. patient	NCCT(lesion laterality)	Multiphase CTA(pial arterial filling evaluation)
Dataset from institution A
Normal	121	N/A	N/A
Intracranial ICA occlusion	40	39 right side 51 left side 6 bilateral side	18 Good collaterals 55 Intermediate collaterals 23 Poor collaterals
MCA territory	56	39 right side 51 left side 6 bilateral side
Dataset from institution B
Normal	58	N/A	N/A
Intracranial ICA occlusion	23	21 right side 25 left side 4 bilateral side	9 Good collaterals 28 Intermediate collaterals 13 Poor collaterals
MCA territory	27	21 right side 25 left side 4 bilateral side

N/A not applicable, NCCT non-contrast CT, CTA CT angiography, ICA internal carotid artery, MCA middle cerebral artery