The present invention seeks to reduce the risk of catheter misalignment for successive intravascular interventions. A first, pre-dilation catheter having a first shaft includes a first distal portion adapted for positioning at the treatment area and a first proximal portion including a first marking at a first location. A second, dilation catheter includes a second shaft including a second distal portion is adapted for positioning at the treatment area and a second proximal portion including a second marking at a second location substantially matching a first location of the first marking.
