Transabdominal and transvaginal ultrasonographic evaluation of cervical incompetence

ABSTRACT

In [15] healthy controls and [25] women with a history of habitual midpregnancy abortion [the study group], transabdominal [TAS] and transvaginal [TVS] ultrasonographic examinations were done for cervical parameters during the first trimester of pregnancy [8-12 week]. In the aborters [TVS] showed a more significant [P < 0.05] widening of the mean internal os [I.O.] [12.8 vs 9.7 mm] and also the cervical diameter [32.4 vs 28.9 mm] with shortening of the cervical length [28.4 vs 32.8 mm] with shortening of the cervical length [28.4 vs 32.8 mm] than that detected by TAS. But in the controls TVS compared to TAS gave only a significant shortening of the cervical length [47.6 vs 53 mm] without any significant variations in [I.O] and cervical diameter. In comparing the aborters with the controls examined by TAS, only [I.O] was a significant widening [9.7 vs 5.8 mm] while cervical diameter and length were of non significant changes, but TVS showed a significant variations in the three cervical parameters either widening of [I.O] [12.8 vs 7.1 mm] and cervical diameter [32.4 vs 29 mm] with shortening [28.4 vs 47.6 mm] in the habitually aborting women in contrast to the controls so TVS is the ideal approach for diagnosis of cervical incompetence