Optimal Timing of Routine Cervical Length Measurements During Anatomy Survey

This intervention involves performing a transvaginal ultrasound to measure cervical length at the beginning of the fetal anatomy survey. The procedure includes using both grayscale and sepia-filtered imaging to evaluate adherence to the nine CLEAR criteria for accurate cervical length assessment.

This intervention involves performing a transvaginal ultrasound to measure cervical length at the end of the fetal anatomy survey. The procedure includes using both grayscale and sepia-filtered imaging to evaluate adherence to the nine CLEAR criteria for accurate cervical length assessment.