An organ model A is created based on the organ 3D data, which is the shape 3D data obtained by measuring the body organ of the subject, and the organ model A is maintained in substantially the same manner as in the body of the body organ. The organ model maintained in the form is measured to obtain model 3D data as shape 3D data, and the internal organ shape indicated by the organ 3D data and the organ model shape indicated by the model 3D data are displayed in a comparable manner. Output.被験者の体内器官を測定して得られた形状３Ｄデータである器官３Ｄデータに基づいて器官モデルＡを作製し、該器官モデルＡを前記体内器官の体内での態様と略同じ態様で維持し、態様を維持された前記器官モデルを測定してその形状３Ｄデータであるモデル３Ｄデータを取得し、前記器官３Ｄデータが示す体内器官形状と前記モデル３Ｄデータが示す器官モデル形状とを比較可能に表示出力するようにした。
