PROBLEM TO BE SOLVED: To perform automation and quantification of analysis so that the determination depending on the subjectivity of a reading doctor may be not caused as much as possible when performing diagnostic imaging.SOLUTION: An image analysis device for ophthalmic disease is characterized by comprising: an image input unit for acquiring three-dimensional voxel images of the head including the eyeballs a voxel image extraction unit for extracting, from the input three-dimensional voxel images, at least one three-dimensional eyeball voxel image of the eye in an eyeball region separately for the right and left eyeballs a projection image calculation unit for creating a first projection image obtained by projecting the extracted three-dimensional eyeball voxel image in an upward- and/or downward-direction and a projection image analysis unit for setting an eye axis that links an ocular anterior pole apex and an ocular posterior pole apex on the first projection image, and calculating, as parameters for image analysis, at least the eye axis length between the ocular anterior pole apex and the ocular posterior pole apex, and the degree of left/right asymmetry on the basis of a region obtained by segmenting the posterior pole side to the right and left bordered by the eye axis.COPYRIGHT: (C)2013,JPO&INPIT【課題】画像診断にあたっては読影医の主観に依存する判定ができるだけ生じないように解析の自動化と定量化をする。【解決手段】眼球を含む頭部の3次元ボクセル画像を取得する画像入力部と、入力した前記3次元ボクセル画像より、左右眼球別に眼球領域の少なくともいずれか一方の眼の3次元眼球ボクセル画像を抽出するボクセル画像抽出部と、抽出した3次元眼球ボクセル画像を、少なくとも上下いずれかの方向に投影した第1の投影画像を作成する投影画像算出部と、前記第1の投影画像に対して眼球前極部頂点と眼球後極部頂点とを結ぶ眼軸を設定し、少なくとも眼球前極部頂点と眼球後極部頂点との間の眼軸長と、眼軸を境界に後極側を左右に分割した領域をもとに左右方向の非対称性の度合いと、を画像解析のパラメータとして算出する投影画像解析部と、を備えることを特徴とする眼科疾患の画像解析装置。【選択図】図3
