method for determination of topographo-anatomic relations of lacrimal sac with surrounding structures

摘要

A method for determination of topographo-anatomic relations of lacrimal sac with surrounding structures, which comprises the computer tomography of lacrimal sac with contrasting, and the scanning is carried out with a step of from nose vestibulum to the basale plate of middle nasal turbinate in the coronal projection, then 3D -reconstruction of images is made.