A kit for treating a treatment area in a vasculature (A) comprising a first catheter (10) adapted for positioning at the treatment area, said first catheter including a first balloon (12) having a transient radiopaque material (M) corresponding to the treatment area, and a second catheter (100) adapted for positioning at the treatment area, said second catheter having a treatment that substantially matches the transient radiopaque material, preferably so that the length and/or position of the treatment corresponds to the length and/or position of the transient radiopaque material.
