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Last Updated: March 25, 2021
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The double decidual sac sign (DDSS) is a useful feature on early pregnancy ultrasound to confirm an early intrauterine pregnancy (IUP) when the yolk sac or embryo is still not visualized.
The "Double Decidual Sign", first described by Nyberg and co-workers consists of two echogenic rings surrounding the hypoechoic gestational sac. The inner ring ... This appearance can be found in the presence of an ectopic pregnancy.
The sensitivity for diagnosis of an intrauterine pregnancy increases when human ... The first, the double decidual sac sign, was described in 1982 by Bradley et al. [3] as two concentric echogenic rings of tissue surrounding the intrauterine sac ...
U/S Stages of Pregnancy. Thickened endometrial stripe; Double-decidual sign; Gestational Sac; Yolk sac; Fetal pole. Double Decidual Sign. Two rings made up ...
Double decidual sac sign. Two concentric echogenic rings surrounding an anechoic sac within the endometrial cavity comprise the DDSS. This finding is the ...