title: [The cervical ripening score by trans-perineum ultrasound].
abstract: OBJECTIVE
  To evaluate cervical ripening in pregnancy at term by trans-perineum ultrasound.
  
  
  METHODS
  The cervical length, cervical internal os width, cervical echo intensity, cervical position and distance between fetal presentation and vaginal external os were assessed by trans-perineum ultrasound (transducer 3.5MHz) in 100 cases of normal pregnant women at term.
  
  
  RESULTS
  On the basis of Bishop score, the results showed, cervical ripening score > or = 9, 14 cases were in labor, mean parturient time 3.9 +/- 3.1 hours; 5 approximately 8 scores, 54 cases were in labor, mean parturient time 20.8 +/- 3.9 hours; < or = 4 scores, 32 cases in which only 21 cases were in labor, mean parturient time 46.9 +/- 3.9 hours. The results were significantly different among the three groups.
  
  
  CONCLUSIONS
  Ultrasonographic cervical ripening score is an objective noninvasive method for assessment of cervical ripening at term.
authors: Obstetrics and Gynecology Hospital, Shanghai Medical University.
authors: C
authors: C
authors: Chang
authors: Y
authors: Y
authors: Zhang
authors: C
authors: C
authors: Wang
mesh_terms: D000328:Adult; D002584:Cervix Uteri / Q000000981:diagnostic imaging* / Q000502:physiology; D005260:Female; D006801:Humans; D007745:Labor Onset / Q000502:physiology; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D014463:Ultrasonography