Tinari S, Buca D, Cali G, et al. - In this study, the risk factor, histopathological correlations, and diagnostic accuracy of prenatal imaging were evaluated in detecting posterior placenta accreta spectrum (PAS). Researchers carried out to search MEDLINE, Embase, and CINAHL. Applying hierarchical summary receiver–operating characteristics model, Random‐effect meta‐analyses of proportions and summary estimates of sensitivity, specificity, positive and negative likelihood ratios (LR+ and LR–), and diagnostic odds ratio were applied to examine the data. A total of 20 studies were included. For posterior PAS, placenta previa and prior uterine surgery represent the most commonly reported risk factors. It was shown that ultrasound had a very low diagnostic accuracy in detecting these disorders prenatally.