CPT® Code 76391

Magnetic resonance (vibration) elastography is a sophisticated, noninvasive imaging technique that integrates magnetic resonance imaging (MRI) with sound wave technology to assess the mechanical properties of body tissues. This procedure is particularly focused on evaluating the elasticity or stiffness of organs, which can provide critical insights into various medical conditions. During the process, the patient is carefully positioned within the MRI scanner, ensuring optimal imaging of the targeted area. An electro-mechanical transducer, which emits sound waves, is placed on the skin over the region of interest. Low-frequency shear wave vibrations are then introduced into the tissue, and the MRI scanner captures images of these vibrations as they propagate through the organ or tissue. The speed at which these vibrations travel is indicative of the tissue's density and elasticity; faster vibrations suggest the presence of dense or stiff (potentially diseased) tissue, while slower vibrations are characteristic of healthy, soft, and elastic tissue. A specialized computer program analyzes the collected data and generates a color-enhanced map that visually distinguishes between normal and diseased tissue, aiding in the diagnosis and management of conditions such as liver disease, fibrosis, and scarring. This technique is particularly valuable as liver disease often remains asymptomatic until significant scarring, known as cirrhosis, has developed, making early detection crucial for effective treatment.