Medical Elasticity Imaging
Medical elasticity imaging research
Recent studies have shown that the malignancy of tumours may be inferred from their stiffness or elasticity. Benign tumours in the breast tend to have a stiffness of about 50kPa-60kPa, whilst malignant tissue tends to be stiffer at about 90kPa-120kPa. Various methods of ultrasonic elastography (elasticity imaging) exist, using methods such as speckle tracking, 2-D kernel cross-correlation, and shear wave imaging. Typically, these look at the changes between successive B-mode ultrasound images whilst the tissue is undergoing mechanical compression.