PROBLEM TO BE SOLVED: To provide an evaluation technique for accurately and objectively estimating a skin age based on the correlation between the skin age and information on a subcutaneous tissue structure.SOLUTION: A skin age is estimated using subcutaneous tissue structure information as an index. A subcutaneous tissue structure feature amount is indicated by one or more kinds of subcutaneous tissue structure feature amounts selected from coarseness and fineness, the number, and thickness of a skin retinaculum structure. A subcutaneous tissue structure information feature amount is measured using MRI (nuclear magnetic resonance imaging). For example, if the number of the skin retinaculum is large, the skin age is low.SELECTED DRAWING: Figure 9COPYRIGHT: (C)2016,JPO&INPIT【課題】肌年齢と皮下組織の構造情報との相関性に基づいた肌年齢を客観的に精度よく推定する評価技術を提供する。【解決手段】皮下組織構造情報を指標として肌年齢を推定する。皮下組織構造特徴量は、皮膚支帯構造の疎密性、本数及び太さから選択される皮下組織構造特徴量1種又は2種以上で表される。皮下組織構造情報特徴量は、MRI(核磁気共鳴画像法)を用いて計測されたものである。例えば、皮膚支帯の本数が多い場合には、肌年齢は低い。【選択図】図9
