DEVICE AND METHOD FOR DETERMINING A DISEASE ACTIVITY

摘要

For determining a disease activity as a single value by means of optical measurements in order to facilitate an analysis of a current disease status and a future course of disease, thus assisting a doctor's diagnosis or decision on a therapy, a system and a method are provided, wherein a blood perfusion is varied in an area of interest; the area of interest is irradiated with light of at least two wavelengths; an intensity of light reflected and/or transmitted by the area of interest is detected; features are derived from detected intensity curves of at least two predetermined wavelengths under at least two different perfusion conditions; and the disease activity is determined using these features.