https://www.selleckchem.com/pr....oducts/Avasimibe(CI-
Cervical length is a commonly used clinical indicator for evaluating preterm birth. However, some studies have shown that cervical length does not change in patients with cervical insufficiency. This study aimed to use the transvaginal ultrasound E-Cervix to quantitatively evaluate the cervical stiffness in women with singleton and twin pregnancies to provide a reference for the clinical prediction of preterm birth. We collected the cervical length, cervical hardness ratio, mean internal os strain, and mean external os strain