Table 2:

OTDT/OTPT, preprocedural neurologic symptoms, and DWI/angiographic findings in the stenosis group

Patient/Sex/Age (y)	OTDT/OTPT	Preprocedural Neurologic Symptoms	A-NIHSS/P-NIHSS	High Signal Intensity on DWI	Stenotic Vessels^*	Occluded Vessels^*
17/M/77	24/27	Somnolence, OP, BP, HP	15/15	CER	lt.V4-pBA, rt.V4	None
18/M/65	2/96	BP, frequent drop attacks	2/1	OL	rt.V4-pBA	lt.V4
19/M/78	2/4	Deep coma, AR, OP, BP, QP	33/33	CER	dBA	rt.V2
20/M/59	4/72	Frequent drop attacks	4/0	None	lt.V1, lt.V3, mBA	None
21/M/75	6/120	OP, BP, frequent syncopal attacks	2/2	OL	pBA	lt.V3
22/M/70	2/168	OP, BP, frequent drop attacks	6/2	P	Lt.V4, rt.V4, mBA	None
23/F/82	24/140	BP, HP, frequent syncopal attacks	3/3	P	mBA	rt.V3
24/M/64	48/168	OP, frequent syncopal attacks	2/1	P	pBA	None
25/M/60	51/98	Stupor, OP, BP, QP	8/17	MB, CER	mBA	None
26/M/74	10/96	BP, frequent drop attacks	1/1	None	mBA	rt.V1
27/M/78	12/144	Stupor, OP, BP, HP	8/18	CER	lt. V1, mBA	rt.V1
28/M/66	2/168	OP, BP, HP	10/7	P	rt.V4-pBA	lt.V3

Note:—OTDT indicates onset-to-door time; OTPT, onset-to-the-procedure time; A-NIHSS, National Institutes of Health Stroke Scale score on admission; P-NIHSS, preprocedural National Institutes of Health Stroke Scale score; M (column 1), male; F, female; DWI, diffusion-weighted MR imaging performed immediately before the procedure; AR, ataxic respiration; OP, ophthalmoplegia; BP, bulbar palsy; QP, quadriparesis; HP, hemiparesis; P, pons; MB, midbrain; CER, cerebellum; OL, occipital lobe; lt., left-sided; rt., right-sided; V1, proximal extraosseous segment of the vertebral artery; V2, foraminal segment of the vertebral artery; V3, intraextraspinal segment of the vertebral artery; V4, intradural segment of the vertebral artery; pBA, proximal basilar artery; mBA, middle basilar artery; dBA, distal basilar artery.
* This was diagnosed by angiography.