الفهرس 
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Abstract
Prediction of mode of delivery, particularly identification of pregnant
women at risk for Cesarean delivery has the potential to improve pregnancy
outcome. Transperineal ultrasound has been suggested to be useful for predicting
the mode of delivery.
In an attempt to assess the ability of ultrasound to accurately predict the
mode of delivery, 150 pregnant females were recruited for the current work.
The study included one hundred and fifty nulliparous women with gestational age
of 37 to 40wk, singleton fetus, cephalic with intact membranes. All women were
not in labor.
We excluded women scheduled for elective cesarean section (CS) for a
variety of indications. After taking history and physical examination patients were
submitted for transperineal Ultrasound imaging to measure the angle of
progression and the mode of delivery was followed to test the ability of the
measured angle to predict the mode of delivery.
We found that for a cut off 93.5 o, angle of progression correctly identified
cases planned to deliver vaginally with a sensitivity of about 83.6% and a
specificity of 88.9%. A statistically significant correlation was found between the
angle of progression measured in the antenatal period and the mode of delivery (p
<0.0001).
Trans-labial ultrasound converted images to measure the angle of
progression in antenatal period accurately predicted the mode of delivery
providing a more scientific basis for assessing labor.