Strain based elastography: A non-invasive diagnostic technique displaying the relative elasticity of tissue stiffness compared to surrounding tissue by a real-time color map, superimposed on conventional gray scale image. Most malignant lesions have a harder or stiffer consistency than surrounding benign tissue. This change in stiffness can also be present in chronic or inflammatory diseases. To displace the underlying anatomical structures, Strain Elastography requires manual palpation by the user, or compression or decompression of the target produced by the patient respiration. On the Philips iU22 it is available for breast imaging on the L17-5, in the advanced breast TSI on the L12-5 transducer, and on the C10-3v for gynecological imaging.