SYSTEM OF MEASURING AND DISPLAYING POSITION OF RADIOGRAPHICALLY CONTRASTED MATERIAL WITHIN LUMINAL ORGANS

摘要

PROBLEM TO BE SOLVED: To provide a method of measuring and displaying the position of a radiographically contrasted material within luminal organs.SOLUTION: A contrast material is introduced into an organ and a plurality of images are obtained. A curve representing the bodily organ is formed based on the images. Local image fields are defined along the curve, and field intensity for each is obtained by integrating the intensity of the image in the field. An intensity profile along the length of the curve is thus obtained for each image, and provides a quantitative representation of contrast material along the bodily organ. The profiles are displayed in any suitable way. Identification of the curve may be aided by introduction of targets into the organ. The target locations can be identified in each image. An image obtained without the contrast material is subtracted from each of the plurality of images to cancel the background radiopacity and isolate the contrast material in each profile.