Table 1. Clinical details of all patients.

NIHSS: National Institute of Health Stroke Scale. Note: all values are calculated from the hyperacute scans with the different masks calculated from the multimodal data (Fig. 1).

Patient ID	Age (yrs)/Sex	NIHSS at arrival	Time since symptom onset	Treatment	Stroke location	Symptoms	Time (days) until follow-up MRI
1	57/M	15	1h 10 min	i.v. thrombolysis and thrombectomy	Right M1 Occlusion	Left-sided hempiaresis	32
2	62/F	2	1h 32 min	none	Occlusion of one of the deep penetrating arteries arising from right M1	Left-sided hemiparesis	33
3	89/F	8	2h 25 min	iv thrombolysis	Occlusion of cerebelli superior artery branches	Left hemiparesis and dysarthria	Not performed
4	58/M	16	1–4h	thrombectomy	Right M1 Occlusion	Paralysis of left arm and left; left-sided hypaesthesia	92
5	72/F	2	1h 5 min	none	Occlusion of one of the deep penetrating arteries arising from M1 and occlusion in posterior watershed	Right-sided hemiparesis	47
6	69/M	15	1–7h	none	Right M1 Occlusion and left posterior watershed	Left-sided hemiparalysis, left-sided facial nerve paresis, neglect	Not performed
7	72/M	17	1h 20 min	none	Left M2 Occlusion	Aphasia and right-sided paresis	23
8	73/M	0	1h 15 min	none	Occlusion of branches of basilar artery	Short-term left-sided hemiparalysis and syncope prior to arrival	41
9	74/M	6	< 24hr	none	Right M2 Occlusion	Left-sided arm paresis	47
10	68/M	3	< 24hr	none	Occlusion of one of the deep penetraring arteries arising from right M1	Left-sided hemiparesis, and facial nerve paresis; dizziness	42