Prediction of preterm birth by transvaginal ultrasound and magnetic resonance imaging measurements of cervical length in pregnancies complicated by twin-twin transfusion and treated with laser surgery.

Although MRI measurement of CL correlates well with TVUS overall, it performs poorly to accurately detect short cervix. Transvaginal ultrasound outperforms MRI in evaluation of the cervix and remains the optimal screening modality for cervical length in pregnancies at high-risk of preterm birth. This article is protected by copyright. All rights reserved.