Popis: |
Ultrasonic elastography is an emerging non-invasive ultrasonic detection technology. Elasticity is an important physical characteristic of human tissue. In cases where a probe is used to press the peripheral nerves along the vertical (axial) direction, the nerves will become displaced, which is termed elastic strain; imaging by ultrasonic elastography utilizes the difference in colour codes to embody the differences in tissue elasticity, where softer tissues have a small elasticity modulus and are indicated by a red colour when they are pressed; in contrast, harder tissues have a large elasticity modulus and are indicated by a blue colour when they are pressed, and those tissues with medium hardness are indicated by a green colour [1, 2]. |