From the Departments of \*Radiology and Obstetrics-Gynecology,t Sinai Hospital of Baltimore, and the SDepartment of Obstetrics and Gynecology, The Johns Hopkins Hospital, Baltimore. For reprints contact Dr. D. Graham at the
The sonographic detection of early first-trimester conjoined twins
โ Scribed by Lyndon M. Hill
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 82 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0197-3851
No coin nor oath required. For personal study only.
โฆ Synopsis
The transvaginal transducer may be utilized to manipulate juxtaposed early first-trimester twins in order to distinguish between conjoined and separate embryos.
๐ SIMILAR VOLUMES
Conjoined twins are rare, and most cases are thoracopagus. Parapagus conjoined twins (one body with two heads) are extremely rare. We report a case of dicephalic parapagus twins that was diagnosed in the first trimester at 10 weeks via transvaginal ultrasonography.
## Abstract A case of conjoined twins after frozen embryo transfer at early blastocyst stage is described. The diagnosis was made early at 7 weeks by vaginal sonography and later confirmed by spatiotemporal image correlation with power Doppler. The value of spatiotemporal image correlation with Dop
Objective: To determine the reliability of first trimester sonography in the detection of twin chorionicity and amnionicity. Materials and Methods: Sets of twins (179) were evaluated sonographically in the first trimester. Chorionicity was determined by identifying the number of gestational sacs. T
The 11-14-week ultrasound examination allows early pregnancy dating, detection of major anomalies and multiple gestations, and accurate chorionicity determination. We describe a rare case of first-trimester sonographic diagnosis of ectopia cordis in a dichorionic twin pregnancy, illustrating the ben