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[Abdominal, perineal and vaginal sonographic diagnosis of cervix insufficiency].

In patients with cervical incompetence, the diagnostic efficiency of abdominal, perineal and vaginal sonography was compared. 73 patients, who were divided into three groups, were examined: Group A (n = 50) control group, Group B (n = 11) normal pregnancies, Group C (n = 12) pregnancies with demonstrated cervical incompetence. According to our results, using vaginal sonography, only the incompetent pregnancies showed significant shortening of the cervical length. Characteristic scans were also obtained (membrane herniation) which were useful in diagnosis and control in the performance of cerclage.