Three-dimensional ultrasound versus magnetic resonance imaging in the diagnosis of placenta accreta spectrum

Abstract

Background Placenta accrete spectrum (PAS), is an increasing obstetric issue. The prevalence of PAS has fundamentally increased because of the global increase in cesarean section (CS) rates over the past few decades. To diagnose PAS in utero. Aim This study aimed to assess and compare the diagnostic accuracy of two imaging modalities: magnetic resonance imaging (MRI) and three-dimensional (3D) ultrasound (US). Patients and methods This prospective observational study included 60 pregnant women between the ages of 21 and 43 who were between 26- and 38 weeks’ gestation and met the clinical criteria of having had placenta previa central and prior uterine surgery (such as cesarean section, myomectomy, or curettage). 3D US and MRI were performed on each patient. Results 3D US can significantly diagnose accurately compared with clinical diagnosis (P value <0.001) with 100% sensitivity, 72.7% specificity, 86.4% positive predictive value (PPV), 100% negative predictive value (NPV), and 90% accuracy, area under the curve=0.864. MRI can significantly diagnose accurate compared with Clinical diagnosis (P value <0.001) with 97.4% sensitivity, 63.6% specificity, 82.2% PPV, 93.3% NPV, and 85% accuracy, area under the curve= 0.805. Conclusions MRI and 3D US were observed to be able to diagnose PAS prenatally with no difference between them and the clinical diagnosis (intraoperative findings). However, 3D US exhibited increased sensitivity, specificity, PPV, NPV, and accuracy compared with MRI.