The present invention discloses an endovascular device arrangement (1) comprising a vascular access port (10)； an endovascular device (20) for inserting into a patient's blood vessel through said vascular access port； and a near-field communication module (15) including an antenna (17), wherein at least the antenna of the near-field communication module is located within the vascular access port； and the endovascular device comprises an electronic device (25) and an antenna arrangement (21) communicatively coupled to said electronic device for maintaining a near-field communication link between the electronic device and the near-field communication module whilst the endovascular device passes through the vascular access port, said antenna arrangement comprising an array of antenna elements (21) located along a shaft of the endovascular device (20), each of said antenna elements being communicatively coupled to said electronic device (25). Also disclosed are an endovascular device (20) and a vascular access port (10) for use in such an endovascular device arrangement (1), an endovascular intervention system including such an endovascular device arrangement (1) and a method of operating such an endovascular intervention system.La présente invention concerne un agencement de dispositif endovasculaire (1) comprenant un orifice d'accès vasculaire (10) ； un dispositif endovasculaire (20) destiné à être inséré dans le vaisseau sanguin d'un patient à travers ledit orifice d'accès vasculaire ； et un module de communication en champ proche (15) comprenant une antenne (17), au moins l'antenne du module de communication en champ proche étant située à l'intérieur de l'orifice d'accès vasculaire ； et le dispositif endovasculaire comprend un dispositif électronique (25) et un agencement d'antenne (21) couplé en communication audit dispositif électronique pour maintenir une liaison de communication en champ proche entre le dispositif électronique et le module de communication en ch
