P17.06: Three‐dimensional reconstruction of the uterine artery cervical segment at 11–14 weeks' gestation

cervical hardness with reduced cervical length (Consistency = 0.0062*cervical length + 2.5152) of weak correlation (r=0.039). Despite the apparent 2.5mm difference in cervical length between LLETZ and control cases, there was no significant difference in cervical consistency between these groups (2.69 IQR; 2.48-2.91) vs. (2.73; IQR 2.38-2.98) (p=0.98). Conclusions: LLETZ results in modest cervical shortening (a mean difference of 2.5mm) but no change in the consistency of the cervix when assessed by ultrasound at 16-22 weeks. This suggests that these features should still be robust measures for prediction of preterm birth in this high-risk cohort.