title: Role of Three-Dimensional Ultrasound in Gynecology.
abstract: Three-dimensional ultrasound (3D USG) is a fast-evolving imaging technique that holds a great potential for use in gynecology. Its sensitivity and specificity is reported to be close to 100 % for diagnosing congenital uterine anomalies, comparable with those of magnetic resonance imaging (MRI) and laparoscopy. With 3D USG, a coronal view of the uterus can be obtained, clearly outlining the external contour of the uterus and providing accurate information about the shape of the cavity. Although 3D USG may not perform well in thin endometria, combining it with saline infusion sonography (SIS) overcomes this problem. Research shows that 3D USG is more sensitive and specific than two-dimensional ultrasound (2D USG) in defining and mapping uterine lesions, such as fibroids, adenomyosis, and intrauterine synechia. In cases of suspected malignancy, 3D USG is mainly used in the initial evaluation of patients. Measuring various indices and mapping vascular architecture with 3D power Doppler have been proposed for evaluating adnexal masses. Although some studies raised hope, no consensus is reached about its use, success, and limitations. In urogynecology, translabial 3D USG is proved to be a valuable tool, as it provides instant access to the axial plane, which clearly depicts the relationship of the vagina, urethra, rectum, and the muscular pelvic floor. Studies report no significant differences between translabial 3D USG and MRI measurements for evaluation of the pelvic floor. In conclusion, adding 3D USG to routine gynecological workup can be beneficial for clinicians, as it provides fast and accurate results in a relatively cost-effective setting.
authors.affiliation: Department of Obstetrics and Gynecology, Amerikan Hospital, Koc University School of Medicine, Rumelifeneri Yolu Sarıyer, 34450 Istanbul, Turkey.
authors.forename: Engin
authors.initials: E
authors.lastname: Turkgeldi
authors.affiliation: Department of Obstetrics and Gynecology, Amerikan Hospital, Koc University School of Medicine, Rumelifeneri Yolu Sarıyer, 34450 Istanbul, Turkey.
authors.forename: Bulent
authors.initials: B
authors.lastname: Urman
authors.affiliation: Department of Obstetrics and Gynecology, Amerikan Hospital, Koc University School of Medicine, Rumelifeneri Yolu Sarıyer, 34450 Istanbul, Turkey.
authors.forename: Baris
authors.initials: B
authors.lastname: Ata
keywords: Congenital uterine anomalies; Gynecology; Oncology; Three-dimensional ultrasound; Urogynecology