Donald School Journal of Ultrasound in Obstetrics & Gynecology
Fetal Biometry
By Frederico G. Rocha and Ivica Žalud.
Abstract
First-trimester measurements Gestational SacThe first definitive sonographic sign to suggest early pregnancy is visualization of the gestational sac (Fig. 1).Gestational sac size measurement should be determined by calculating the mean sac diameter (MSD).This value is obtained by adding the three orthogonal sac diameter dimensions of the chorionic cavity and dividing by three.To correctly measure sac diameter, the cursors should be placed on the sac itself and should not include the echogenic region surrounding the gestational
Keywords
- Ectopic Pregnancy Diagnosis and Management
- Open access
Source
Published in Donald School Journal of Ultrasound in Obstetrics & Gynecology. The abstract is shown as published and remains the work of its authors; read the full article at the source.
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