Article Figures & Data
Figures
- Fig 1.
CBVF before (CBVF pre) and after (CBVF post) interventional obliteration of the ICA. Star indicates P < .05.
- Fig 2.
Volume flow in the ipsilateral ICA before (iICA pre) and after (iICA post) SPAC. Stars indicate P < .01.
- Fig 3.
Volume flow of the contralateral carotid artery in patients with anterior cross-filling before (cICA pre) and after (cICA post) SPAC and volume flow of the vertebral arteries in patients with posterior collateral flow before (tAV pre) and after (tAV post) the procedure. Stars indicate P < .01.
Tables
Finding No. Sex Male 20 Female 13 Vascular risk factors Hypertension 21 Diabetes 4 Hyperlipidemia 11 Nicotine use 4 Type of ischemia Stroke 13 Transient ischemic attack 15 Amaurosis fugax 3 Asymptomatic 3 Concomitant vasculopathy ICA occlusion 7 Vertebral artery occlusion or stenosis 6 ICA stenosis 4 MCA stenosis 1 Residual stenosis Yes 2 No 32 Periprocedural symptoms None 30 Transient 3 Persistent 1 Type of Collateral Flow No. of Patients (%) No. after Intervention Ophthalmic 9(26.5) 0 Anterior cross-flow 16(47.1) 1 Posterior 10(29.4) 0 Leptomeningeal 6(17.6) 0 None or insufficient bone window 7(20.6) 0 Finding Volunteers* Patients before SPAC P Value CBVF (mL/min) 599.6 ±63.9 527.7 ±120.2 .027 Flow volume (mL/min) Ipsilateral ICA 212.2 ±36.4 108.4 ±57.5 <.01 Contralateral ICA 212.2 ±36.4 295.1 ±61.6 .025 Total vertebral arteries 176.2 ±30.1 275.1 ±67.9 <.001 * Healthy volunteers included six men and four women aged 58.2 years ± 10.2.
Finding Volunteers Post SPAC P Value CBVF (mL/min) 599.6 ±63.9 571.9 ±100.7 >.05 Flow volume (mL/min) Ipsilateral ICA 212.2 ±36.4 185.9 ±75.2 >.05 Contralateral ICA 212.2 ±36.4 273.6 ±65.7 .02 Total vertebral arteries 176.2 ±30.1 226.1 ±46.2 <.01
