LIQUID MIXTURE FOR ABSORBING AND STABILIZING GAS BUBBLES TO BE USED AS CONTRAST AGENT IN ULTRASONIC DIAGNOSIS AND PROCESS FOR ITS PREPARATION

摘要

The useful lifetime and the amount of microbubbles of a size less than 50 mu m produced by mechanical agitation of an aqueous liquid employed as an ultrasonic contrast medium are increased by employing a liquid containing dissolved therein a tenside which reduces the surface tension of the liquid and a compound which raises the viscosity of the liquid.