A coupling medium of a thin layer of a homogenized mixture of at least one polysaccharide
or disaccharide such as trehalose; a surface-active substance such as sodium dioctylsulfosuccinate;
and water acts as a coupling medium for transverse ultrasonic waves, when the homogenized
mixture is applied to surfaces of a transmitting, respectively receiving, transducer
for transverse ultrasonic waves; and a surface of a probe.
