The present disclosure relates to medical devices that comprise (a) a balloon structure having a proximal end, a distal end, a porous region, a non-porous region and an interior chamber, and (b) one or more radiopaque markers disposed on the balloon structure, the radiopaque markers including a polymeric material and a radiopaque material. The present disclosure also relates to methods of forming such medical devices, systems that include such medical devices, and methods of using such medical devices and systems.