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. 1989 May;31(2):103-8.
doi: 10.1016/0028-2243(89)90170-6.

Is it really a placenta previa?

D Farine  1 , H E Fox, S Jakobson, I E Timor-Tritsch
Affiliations

Is it really a placenta previa?

D Farine et al. Eur J Obstet Gynecol Reprod Biol. 1989 May.

Abstract

Transvaginal sonography was compared to the traditional transabdominal sonography for diagnosing placenta previa. There was no vaginal bleeding in the 55 women studied following vaginal examination. The exact location of the internal os was diagnosed in all women by the vaginal route, and only in 36 of the 55 by abdominal scanning. Transvaginal sonography correctly diagnosed 39 out of the delivered 45 women, whereas transabdominal sonography only did so in 20 of the 45 cases. These results suggest that transvaginal sonography for the diagnosis of placenta previa is safe and superior to transabdominal sonography.

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