System for evaluating risk that suspected sicca syndrome patient receives lip gland biopsy to obtain positive pathological result

The invention discloses a system for evaluating the risk that a suspected sicca syndrome patient receives lip gland biopsy to obtain a positive pathological result. The system comprises an ultrasonicscore measuring module, a total ultrasonic score summarizing module, a shear-wave elastography (SWE) elasticity value measuring module, a total SWE elasticity value summarizing module, a comparison and judgment module and a risk result display module. According to the system, through total ultrasonic scores and total SWE elasticity values of four glands including parotid glands and submandibular glands on two sides, it can be evaluated that the risk of a positive pathological result obtained by lip gland biopsy of a suspected sicca syndrome patient is high, medium or low. Besides, a logistic regression equation of interaction is used, the risk probability that the corresponding lip gland biopsy result is positive is calculated according to the total ultrasonic score and the total SWE elasticity value, and a risk p