WALLINGFORD, Conn.--(BUSINESS WIRE)--Hitachi Aloka Medical announced that it will be displaying the world’s first 4D ultrasound Elastography feature at the Radiological Society of North America’s (RSNA) annual meeting this year. The feature, available only on the company’s HI VISION Ascendus™ system, uses conventional volume ultrasound probes to create live 3-dimensional images depicting the relative stiffness of tissue. Because certain disease processes often modify the elasticity of tissue, 2-dimensional Elastography has been recognized as a useful tool in the characterization of tissue. Hitachi Aloka’s 4D implementation extends this utility by allowing clinicians to better visualize the 3-dimensional distribution of stiffness in real-time.