An early pregnancy scan in Vijayawada is the first scan performed to view the embryo after confirmation of pregnancy by a urine pregnancy test or by a blood test that measures serum beta hCG levels.
It is performed at best fetal medicine center in Vijayawada between 5 and 10 weeks of period of gestation, preferably by transvaginal route.
Sequence of appearance of signs of pregnancy on scan:
At five weeks period of gestation
Gestational sac is the first sign of pregnancy on scan. It appears as fluid filled structure Mean sac diameter ( MSD.) measures around 2-3mm.
At six weeks period of gestation
Yolk sac is identified as small fluid filled structure within the gestational sac. It is identified when the gestational sac measures around 10mm. Size of yolk sac ranges between 2 and 6mm.
Embryo can be identified attached to yolk sac. It resembles a rice grain measuring around 2mm.
At seven weeks period of gestation
Embryo with heart beat is noted by this time. Measurement of embryo is expressed as crown rump length (CRL) in mm. Cardiac activity is seen as cardiac pulsation.
At eight weeks period of gestation
Embryo measures around 18-20mm.Limb buds can be identified. Rhombencephalon is seen. CRL increases by 1-1.5 mm per day.
At nine weeks period of gestation
CRL measures around 3.3 to 4cm. Spine can be seen along with a little bigger limb buds.
At 10 weeks period of gestation:
Embryo measures around 3.9- 4.4 cm. Head, body and limb buds are clearly identified.
The following information is acquired by performing an early pregnancy scan
- Whether the pregnancy is intra uterine or ectopic
- Number of fetuses in the uterus
- Fetal heart rate of the fetus
- Chorionicity and amnionicity in twins and higher order multiple pregnancies
- Look for adnexal masses if any.
Results/ Post Procedure
Since scans can be uncertain and not all pregnancies are the very same, there are extremely strict guidelines for scans in early pregnancy. If there is any doubt whatsoever, the scan will be repeated in a week or two.
Try not to panic. Waiting for a follow-up scan can be stressing yet recall that most pregnancies are successful. Yet, in the unlikely event that your child has a health issue, the information from the ultrasound can assist your best gynecologist in Vijayawada with deciding how to give your baby the best result possible.
US findings Diagnostic of early pregnancy failure
- CRL ≥7 mm with no heartbeat
- MSD ≥25mm with no embryo
- Absence of embryo with a heartbeat ≥ 2 wks after US showed GS without yolk sac
- Absence of embryo with a heartbeat ≥ 11 days after US showed GS with yolk sac.
Visit Dr. P. Madhavi Latha at pregnancy scanning centers in Vijayawada
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