Experience with computed tomography (CT) pelvimetry in Ibadan, Nigeria: a preliminary report.

Computed tomography (CT) pelvimetry has largely replaced conventional radiography in the antenatal assessment of pelvic dimensions, but its usefulness in the Nigerian setting is yet to be assessed. This study was undertaken to ascertain if there is a relationship between antenatal CT pelvimetric measurements and the mode of delivery at the end of the pregnancy. A group of thirty-one patients who had antenatal pelvimetry were categorised into two groups depending on whether they achieved vaginal delivery or not and the pelvimetric and other obstetrrc characteristics of the two groups were compared. The only parameters that showed statistically significant differences between the groups were the higher maternal height and the lower head circumference in the neonates of women achieving vaginal delivery. The findings suggest that fetal parameters may be more predictive of mode of delivery than absolute pelvic measurements.