1. A method of displaying information concerning a tubular structure, the method comprising: (a) determining a centerline along at least a portion of the tubular structure; (b) determining a plurality of center points along the centerline, the center points being respectively separated from one another by a first sampling distance; (c) determining a plurality of cross-sections at the plurality of center points, respectively, wherein each cross-section is perpendicular to the centerline at its respective center point; (d) identifying first values associated with each of the cross-sections, wherein the first values are indicative of a first characteristic of the tubular structure at the respective cross-sections; (e) generating a modified image of the tubular structure by computing a plurality of image lines of the modified image, wherein each image line corresponds to a respective cross-section; and (f) displaying a curve alongside the modified image, wherein the curve is representative of the first characteristic of the tubular structure, wherein the curve is formed by displaying a plurality of second values along a scale, wherein each second value is functionally related to a respective one of first values, and wherein each second value is positioned alongside the modified image of the tubular structure along a respective one of the image lines.