Table 1

Characteristics of patients treated with vertebral percutaneous transluminal angioplasty or stenting, and immediate angiographic result

Patient	Sex	Age (years)	Presenting symptom	CT/MRI findings	Angiographic findings pretreatment	PTA (stent) result
F, female; ICA, internal carotid artery; LV, left vertebral; M, male; PCA, posterior cerebral artery; PICA, posterior inferior cerebellar artery; R, right; RV, right vertebral; SCA, subclavian artery; TIA, transient ischaemic attack.
1	M	71	Posterior circulation TIA	Bilateral cerebellar infarcts	LV: 80% stenosis	0% stenosis
2	F	67	Posterior circulation TIA	Normal	LV: 70% stenosis	0% stenosis
3	M	54	Anterior circulation stroke	Left parietal infarct	LV: 80%stenosis	53% stenosis
4	F	63	Posterior circulation stroke	Left PICA infarct	RV: 50% stenosis	32% stenosis
5	F	61	Posterior circulation stroke	Normal	LV: 80% stenosis	0% stenosis (stent)
6	M	41	Posterior circulation stroke	Right medullary infarct, left PCA infarct	RV: 80% stenosis	10% stenosis (stent)
7	M	39	Posterior circulation stroke	Right PICA artery infarct	LV:70% stenosis	20% stenosis (stent)
8	F	44	Posterior circulation stroke	Bilateral PCA infarcts	LV:80% stenosis	40% stenosis (stent)
9	M	59	Posterior circulation stroke	Right pontine infarct	RV: 90% stenosis	10% stenosis (stent)
10	M	66	Posterior circulation TIA	Left pontine, bilateral cerebellar and occipital infarcts	RV:70% stenosis	0%stenosis (stent)
11	M	62	Posterior circulation TIAs	Old right hemispheric infarct	LV: 70% stenosis	0% stenosis (stent)
12	M	48	Posterior circulation TIAs	Normal	LV: 80% stenosis	0% stenosis (stent)
					R mid SCA: 90% stenosis	50% (PTA only)
13	M	67	Posterior circulation stroke	Right occipital infarct	RV: 90% stenosis	20% stenosis (stent)
14	F	45	Posterior circulation TIAs	Normal	LV 90% stenosis	20% stenosis (stent)