PROBLEM TO BE SOLVED: To more easily confirm the result of extraction of a plurality of kinds of blood vessels in a three-dimensional medical image showing a subject.SOLUTION: When the blood vessels to be extracted are pulmonary arteries and pulmonary veins for example, a pulmonary blood vessel extraction section 31 extracts a vascular structure showing the pulmonary arteries or the pulmonary veins from the three-dimensional medical image showing the chest of the subject, stores relatedly each of the extracted vascular structure and blood vessel identification information showing the kind of the blood vessel of the vascular structure in a storage means, contact and intersection detection sections 31a and 31b detect contacts and intersections where the extracted vascular structures come into contact with or intersect each other, a display control section 33 displays the vascular structures in the contacts and intersections and the vicinities of the contacts and intersections in a mode permitting the blood vessel identification information related to the vascular structure to be identified for at least some of the detected contacts and intersections and displays the contacts and intersections in a mode permitting the contacts and intersections to be identified.COPYRIGHT: (C)2012,JPO&INPIT【課題】被検体を表す3次元医用画像中の複数の種類の血管の抽出結果をより容易に確認する。【解決手段】例えば、抽出対象の血管が肺動脈と肺静脈の場合、肺血管抽出部31が、被検体の胸部を表す3次元医用画像から肺動脈または肺静脈を表す血管構造を各々抽出し、抽出された血管構造の各々と、その血管構造の血管の種類を表す血管識別情報とを関連づけて記憶手段に記憶させておき、接交点検出部31aおよび31bが、抽出された血管構造同士が接触または交差する接交点を検出し、表示制御部33が、検出された接交点の少なくとも一部について、接交点および接交点の近傍の血管構造を、血管構造に関連づけられた血管識別情報を識別可能な態様で表示させるとともに、接交点を識別可能な態様で表示させる。【選択図】図2
