1. A method for three-dimensional esophageal reconstruction, comprising: orally administering a radiocontrast agent; acquiring a first X-ray image from a first angle with respect to a subject using a first X-ray imager while the orally administered radiocontrast agent coats an inner lining of the esophagus; acquiring at least a second X-ray image from a second angle, different than the first angle, with respect to the subject using a second X-ray imager while the orally administered radiocontrast agent coats the inner lining of the esophagus; generating a three-dimensional model of the esophagus from the at least two X-ray images acquired at different angles; acquiring a set of fluoroscopic X-ray images using either the first X-ray imager or the second X-ray imager after the orally administered radiocontrast agent has substantially cleared from the esophagus; registering the three-dimensional model of the esophagus to the acquired set of fluoroscopic X-ray images; and displaying the three-dimensional model of the esophagus overlaying the set of fluoroscopic X-ray images.