A marker to assist locating a device such as an expandable stent withinvasculature of a patient,including an elongated body formed of a biocompatible radiopaque material thatenhanceslocating the marker when using at least one imaging technique. The body has afirst end, asecond end, an inner surface, an outer surface, and at least two opposingedges extendingbetween the first and second ends and establishing a boundary between theinner surface and theouter surface. The inner surface of the body defines a passageway extendingbetween the firstand second ends. In a first condition, the body defines a gap between the atleast two opposingedges, the gap enabling unobstructed communication of the passageway with theouter surface ofthe body. In a second condition, the gap is obstructed to substantiallyprevent communication ofthe passageway with the outer surface of the body.
