ABSTRACT
Introduction III Measuring Principle and Hardware III Preconditioning of Individuals and Measurement 113 The Parameters Expressed by the Device 113 Applications and Interpretation 114 References 114
INTRODUCTION The Dermaflex A (Figure 9.1) was originally developed as a prototype by the Department of Dermatology, Rigshospital, Copenhagen, Denmark and the Institute of Technical Engineering (ATV), Glostrup, Denmark. Its purpose is to measure objectively the stiffness of the skin in scleroderma (Figure 9.2) in concert with other methods for measurement of skin thickening and change of color in this disease. I•2 It soon became applied to assessment of psoriasis and histamine wheals exemplifying edematous states (Figure 9.3).3
