2011•Journal of clinical and experimental medicineRequires access
Comparison of high-frequency and transvaginal ultrasound in the diagnosis of early pregnancy
Juan Liu
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Abstract
Objective To investigate the diagnostic value of high-frequency ultrasound in the first trimester pregnancy.Methods Pregnant women with gestational sac within 70 mm from the skin were selected by abdominal ultrasonography and further examined with high-frequency ultrasound and transvaginal ultrasound respectively.The images of gestational sac,yolk sac and embryo were compared between two examinations.Results Of 108 pregnant women,high-frequency ultrasound and transvaginal ultrasound showed gestational sac,yolk sac and embryo in 94(87.04%) vs.97(89.81%),82(75.93%) vs.85(78.70%),and 58(53.70%) vs.58(53.70%),respectively.There was no significant difference in the detection rates of these indicators between the two methods(P0.1).Conclusion Both high-frequency ultrasound and transvaginal ultrasound examinations may effectively show gestational sac,yolk sac and embryo in early pregnant women with thin belly.