Objectives; In this study we compared transabdominal ultrasound to transvaginal ultrasound to determine which one of them is most accurate in measuring the LUS.
Methods; a prospective observational study on 100 pregnant at term women with history of previous one CS visited Maternity Teaching Hospital between period Jan 2020 to Sep 2020.
Results; of total 100 women ( age range 20-42 years), more than half were primiparous and majority were with no history of miscarriage, mean LUS was 4 mm with standard deviation 1.09 in abdominal ultra sound 3.4 with standard deviation 1.14 in transvaginal and 3.45mm with standard deviation 1.2 in intraoperative before delivering head of the baby (p < 0.001).
Conclusion; Trans vaginal ultrasound is more accurate than transabdominal ultrasound in measuring lower uterine segment.
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