METHOD OF INVIVO MEASUREMENT OF ELASTIC PROPERTIES OF SKIN IN RADIOTHERAPY PATIENTS

[摘要] A portable apparatus which measured the force-displacement or elastic characteristics of skin in vivo was constructed. A displacement transducer between 2 arms measured the extension of the skin as the arms were driven apart by means of a lead screw, and the force exerted on the skin was measured by means of 2 electrical resistance strain gauges attached at a reduced section on each of the arms. The apparatus was designed for compactness and lightness to enable it to be hand held. Illustrative results obtained on patients during and after courses of radiotherapy were presented.