PROBLEM TO BE SOLVED: To provide a 3D navigation image generation device that enables easy reference to an operation plan created in a preoperative conference, etc. according to a situation changing every moment during an operation.SOLUTION: A 3D navigation image generation device includes: an operation field 3D image forming device 3 for acquiring an operation field 3D image showing an affected part under treatment a navigation 3D image generation device 6 for generating a navigation 3D image in which a marker that gives an instruction on an operation procedure is given to a volume rendering 3DCG image of the affected part generated prior to the operation a 3Din3D image combining device 9 for generating a 3Din3D image that displays a navigation 3D image formed in correspondence with the depth and the display range of the operation field 3D image by fitting it into the operation field 3D image and a 3D image display device 11. An image is displayed in which the navigation 3D image is fitted into a part of the operation field 3D image.COPYRIGHT: (C)2015,JPO&INPIT【課題】術中に刻々変化する状況に合わせて、手術前カンフェランスなどで立案した手術計画を容易に参照できるようにした3Dナビゲーション映像生成装置を提供する。【解決手段】施術中の患部を表示する術野3D映像を取得する術野3D映像形成装置3と、術前に生成した患部のボリュームレンダリング3DCG映像に手術手順を指示するマーカを付与したナビゲーション3D映像を生成するナビゲーション3D映像生成装置6と、術野3D映像の奥行きに対応するとともに表示範囲を対応させて形成したナビゲーション3D映像を術野3D映像にはめ込んで表示する3Din3D映像を生成する3Din3D映像合成装置9と、3D映像表示装置11を備え、術野3D映像の一部にナビゲーション3D映像をはめ込んだ映像を表示する。【選択図】図1
