METHOD FOR LIVER SEGMENT DIVISION USING VASCULAR STRUCTURE INFORMATION OF PORTAL VEIN AND APPARATUS THEREOF

摘要

PURPOSE: A method for classifying liver segment using vascular structure information of portal vein and an apparatus thereof are provided to implement more objective and accurate reading, by automating the reading method. CONSTITUTION: Three-dimensional chest volume data is acquired (S210). Route tree is generated by using a Euclidian distance map (S220). End point, branching point and skeleton of liver vein are extracted using level set (S230). The position of the extracted branching point is corrected (S240). Liver segment is classified by using the branching pattern structure (S260). [Reference numerals] (AA) Start; (BB) Finish; (S210) Acquire three-dimensional chest volume data; (S220) Generate a route tree by using an Euclidian distance map; (S230) Extract an end point, a branching point and a skeleton of a liver vein; (S240) Correct the position of the extracted branching point; (S250) Analyze branching patterns in respect to the liver vein and extract a main blood vessel; (S260) Classify a liver segment by using a branching pattern structure of the main blood vessel