Lumen of the artery or bypass graft is free from obstruction, the suture line is intact, and the graft is patent.
Small, flexible angioscope is inserted through small surgical opening and passed into the lumen in antergrade or retrograde direction
To visualize the lumen and endothelial surfaces of the affected artery or vein directly so that the cause of the obstruction or impaired blood flow can be identified
Performed as an adjunctive procedure during vascular surgery (thrombectomy, atherectomy, bypass grafting)
