Reconstruction or repair of a Blood Vessel, which includes the widening of a pathological narrowing of an Artery or Vein by the removal of atheromatous plaque material and/or the endothelial lining as well, or by Dilatation (Balloon Angioplasty) to compress an ATHEROMA. Except for Endarterectomy, usually these procedures are performed via Catheterization as minimally invasive Endovascular Procedures.