Elastography is a medical imaging technique that measures the elastic properties of tissues in the body. It is used to detect abnormalities in tissues based on their stiffness, as different types of tissues have different elasticity values. Elastography can be performed using various imaging modalities such as ultrasound, magnetic resonance imaging (MRI), or optical coherence tomography. The main applications of elastography include the detection of liver fibrosis, the characterization of breast lesions, and the assessment of prostate cancer. Elastography is also used in musculoskeletal imaging to evaluate soft tissue injuries and in cardiovascular imaging to assess arterial stiffness. Overall, elastography provides valuable information about tissue architecture and can help in the early diagnosis and management of various diseases.