Balloon system including registration marking

A system for registering images, comprising:

• a first imaging device having an imager positioned at a distal end thereof, said first image device configured to produce a first image of a body cavity;
• and
• an imaging system comprising:
• a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image, and
• an elongated member having an outer surface defining a non-uniform profile, the outer surface including at least one surface feature such that the profile is non-uniform,
• wherein the surface feature is viewable in the first image and the second image to produce registration information.

A method for registering images in a system having a first imaging device configured to produce a first image and an imaging system including a second imaging device molded into a surface of an elongated member, said second imaging device rotatable and configured to produce a second image, comprising the steps of:

• inserting said first imaging device into a cavity of a patient;
• inserting said imaging system positioned with said elongated member into the cavity of the patient;
• producing by said first imaging device a first image containing an image of at least one marker;
• producing by said second imaging device a second image containing an image of said marker;
• and
• registering said first image and said second image based on the image of the marker in the first and second images.