This study aim to evaluate the quality of fetal ultrasound in obese pregnant women. The hypotheses is that an early ultrasound will improve the quality of the ultrasound in obese.
Ultrasound examination for fetal anomaly is especially challenging in obese gravida. The foetus is more likely to have congenital anomalies and imaging in these patients is technically more difficult. The investigators hypotheses that an earlier ultrasound with alternative technics will improve the quality and thereby improve the identification of anomalies. By using transvaginal ultrasound and abdominal ultrasound at the window just above the symphysis, were the subcutaneous fat is known to be thinner, the investigators hope to achieve a better overview. This will be done by evaluating fetal ultrasound at three different gestational ages (GA); GA 13, 15 and 21 weeks.
Study Type
OBSERVATIONAL
Enrollment
180
Department of Gynaechology and Obstetrics, Holbaek Hospital
Holbæk, Denmark
RECRUITINGImage quality of ultrasound at 15 compared with 21 weeks of gestation.
Image quality evaluated by experts on a visual analog scale from +50 - -50, parried with standardized ultrasound pictures at the above mentioned GA.
Time frame: The participants will be examined for an hour at to different stages of the pregnancy (GA 14+0-15+0, GA 20+0-21+0)
Image quality of ultrasound at 13 compared with 15 weeks of gestation.
Image quality evaluated by experts on a visual analog scale from +50 - -50, parried with standardized ultrasound pictures at the above mentioned GA.
Time frame: The participants will be examined for an hour at to different stages of the pregnancy (GA 11+3 - 13+0, GA 14+0-15+0)
Analyses of BMI, visceral to subcutaneous fat ratio, distance from cutis to amnion and hip-waist ratio´s influence on image quality.
Time frame: The participants will be examined for an hour at three different stages of the pregnancy (GA 13, GA 15, GA 21 and GA 36 weeks).
Weight estimate
The use of weight estimate in obese pregnant women at GA 36 compared to birthweight.
Time frame: The participants will be examined for an hour at GA 36 weeks. The participants will in all be followed until 6 months after birth, which is one year in all.
Amnion fluid in obese
Measurement of amnion fluid by deepest vertical pocket and amnion fluid index.
Time frame: The participants will be examined for an hour at three different stages of the pregnancy (GA 15, GA 21, GA 36 weeks)
Crown-rump length (CRL) measurement transvaginal and abdominal
Measurement of CRL in mm, by using two different probes, transvaginal and abdominal.
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Time frame: The participants will be examined for an hour at GA 13 weeks.