Disclosed is a device for measuring a length of a tubular body structure. The device comprises an elongated tubular member having a proximal end and a distal end. The elongated tubular member comprises a plurality of radiopaque markers uniformly arranged on the distal end and a plurality of non-radiopaque markers uniformly arranged on the proximal end. The elongated tubular member also comprises a guiding head member coupled to the distal end of the elongated tubular member. A number of the radiopaque markers of a portion of the distal end of the elongated tubular member conforming to an affected portion of the tubular body structure enables in measuring a length of the affected portion, when the elongated tubular member is inserted through a skin entry site of the tubular body structure under fluoroscopy.