Second trimester cervical length measurements with transvaginal ultrasound: A prospective observational agreement and reliability study.
Pihla KuuselaUlla-Britt WennerholmHelena E BackmanJan WesströmPeter LindgrenHenrik HagbergBo JacobsonLil ValentinPublished in: Acta obstetricia et gynecologica Scandinavica (2020)
Agreement and reliability of cervical length measurements differed substantially between examiner pairs and examiners. If cervical length measurements are used to guide management there is potential for both over- and under-treatment. Uniform training and rigorous supervision and quality control are advised.