PROBLEM TO BE SOLVED: To obtain a medical image forming apparatus capable of forming an accurate two-dimensional visible image of luminal tissue by excluding the effect of peripheral tissue, a medical image forming program, and a medical image forming method.SOLUTION: The medical image forming apparatus 1 is constituted so that the three-dimensional medical image data of a noticeable blood vessel is extracted in a predetermined extraction width from three-dimensional medical image data acquired by an image forming apparatus 4 and the extracted three-dimensional medical image data of the noticeable blood vessel is projected on a two-dimensional plane in a three-dimensional space to form the two-dimensional visible image of the noticeable blood vessel. This apparatus 1 has an extraction width setting means 21 for changing the extraction width of the three-dimensional medical image data of the noticeable blood vessel in the projection direction corresponding to the distance along the core line from the start part of the core line in the noticeable blood vessel.COPYRIGHT: (C)2013,JPO&INPIT【課題】周辺組織の影響を排除することで、管腔状組織の正確な2次元可視画像を生成可能な医用画像生成装置、医用画像生成プログラムおよび医用画像生成方法を得る。【解決手段】医用画像生成装置1は、画像撮像装置4により撮像して取得された3次元医用画像データから、注目血管の3次元医用画像データを所定の抽出幅で抽出し、抽出された注目血管の3次元医用画像データを3次元空間内の2次元平面上に投影して、注目血管の2次元可視画像を生成する装置であって、投影方向における注目血管の3次元医用画像データの抽出幅を、注目血管における芯線の起始部からの芯線に沿った距離に応じ変化させて設定する抽出幅設定手段21を備える。【選択図】図1
