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Sonographic Appearances of Normal Intrauterine G-sac:
It should be possible to visualize a normal G-sac via TVS between 4.5 to 5 weeks of MGA.
The threshold level identifies the earliest we can visualize the sac :- 4 weeks + 3 days.
The discriminatory level indicates when we should always see the sac :- 5 weeks + 2 days.
The earliest appearance of gestation on TVS is referred to as Intra Decidual Sign. It is seen as a small gestational sac within within the decidua.
It should be possible to visualize a normal G-sac via TVS between 4.5 to 5 weeks of MGA.
The threshold level identifies the earliest we can visualize the sac :- 4 weeks + 3 days.
The discriminatory level indicates when we should always see the sac :- 5 weeks + 2 days.
The earliest appearance of gestation on TVS is referred to as Intra Decidual Sign. It is seen as a small gestational sac within within the decidua.
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