B-mode ultrasonic image can show characteristics of those diseases, such as endometritis,stillbirth, abortion, pyometra, gas-swollen foetus and foetal deformity, and so on.

• 试验表明,B超可显示渗出性子宫内膜炎、死胎、流产、子宫积液、气肿胎和胎儿畸形等疾病的特征性声像图。