Is Sonographic Assessment of the Cervix Necessary and Helpful?LARMA, JOEL D. MD; IAMS, JAY D. MDClinical Obstetrics & Gynecology: March 2012 - Volume 55 - Issue 1 - p 324–335 doi: 10.1097/GRF.0b013e3182487e96 Imaging in Obstetrics: State of the Art Abstract Author Information Transvaginal sonography of the cervix has emerged as a useful window into preterm parturition. Cervical sonography allows measurements of cervical length (CL), which can aid clinicians in identifying women at risk for preterm birth. The use of transvaginal assessments of CL can assist in the triage of patients with possible preterm labor. Recent studies also support the use of CL measurements as a means of determining appropriate candidates for cerclage placement and progesterone supplementation to reduce the risk of premature birth, further highlighting the importance of this modality in modern obstetric management. Department of Obstetrics & Gynecology, Division of Maternal Fetal Medicine, The Ohio State University, Columbus, Ohio The authors declare that they have nothing to disclose. Correspondence: Joel D. Larma, MD, Department of Obstetrics & Gynecology, Division of Maternal Fetal Medicine, The Ohio State University, Columbus, OH. E-mail: Joel.firstname.lastname@example.org © 2012 Lippincott Williams & Wilkins, Inc.