Objective: To compare the accuracy of different ultrasonographic modalities;
two-dimensional ultrasound (2D-US), color Doppler and three-dimensional power
Doppler (3D-PD) in the antenatal diagnosis of the morbidly adherent placenta.Setting: Obstetrics and Gynecology Department, Faculty of Medicine, Assiut
University, Assiut, Egypt. Study Design: A cross-sectional study. Methods: All patients fulfill the inclusions criteria:
gestational age > 28 weeks, previous one or more cesarean delivery, previous uterine surgery, placenta
previa, vitally stable patient and women accepted to participate in the studywere included.All patients were evaluated using 2D-US, color
Doppler and 3D-PD before delivery. The final diagnosis was established by
laparotomy and by histopathology of hysterectomy sample if hysterectomy would
be done.Results: One-hundred fifty patients were enrolled in the study. 2D-US has higher
sensitivity (86.96%) than 2D color Doppler (84.06%) and 3D-PD (79.71%) in the
diagnosis of placenta accreta. On the other hand, 3D-PD has slightly higher
specificity (83.95%) than color Doppler (82.72%) and
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