ECODENSO , According to my son-in-law, head of the research and development department of General Electric in Salzburg, doctor of ultrasound physics, this is a term related to the physical, muscle or bone density detected in an ultrasound exam. Ultrasound exams are the ability to bounce a sound. Ecodensity or ecogenicity is higher when the surface produced by the echo reflects increased sound waves. Higher ecodensity tissues are called hyperecogenic and produce softer colors in medical ultrasound. In contrast, tissues with low ecogenicity are called hypoecogenic and are usually depicted with darker colors. Areas without ecogenicity are called anechogenic and look completely dark.