system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following sonographic finding confirms intra uterine pregnancy
assistant
The correct answer is  Normal gestational sac implants eccentrically in the endometrium.
Anechoic center surrounded by single echogenic rim = intra-decidual sign.
Two concentric rings echogenic surrounding sac = Double decidual sign.