Fig. 4From: Changes in cervical elastography, cervical length and endocervical canal width after cerclage for cervical insufficiency: an observational ultrasound studyComparisons of (a) anterior cervical lip strain rate, (b) posterior cervical lip strain rate, (c) cervical length, and (d) endocervical canal width between the cervical insufficiency and no cervical insufficiency groups according to gestational ageBack to article page