Key clinical point: Accuracy of ultrasonography for the prenatal diagnosis of placenta accreta spectrum (PAS) disorder is comparable with that of magnetic resonance imaging (MRI).
Major finding: Ultrasonography and MRI showed similar sensitivity (0.90; 95% CI 0.86-0.93 vs. 0.89; 95% CI 0.85-0.92), specificity (0.83; 95% CI 0.79-0.86 vs. 0.87; 95% CI 0.83-0.89), and diagnostic odds ratio (39.5; 95% CI 19.6-79.7 vs. 37.4; 95% CI 17.0-82.3) for PAS diagnosis, with no significant difference between their pooled diagnostic sensitivity ( P = .808) and specificity ( P = .413).
Study details: This is a meta-analysis of 18 studies including 861 pregnancies at a potential risk for PAS, of which 339 were diagnosed with PAS.
Disclosures: The study was sponsored by the Natural Science Foundation of Science and Technology Commission of Shanghai Municipality. The authors declared no conflicts of interest.
Source: Hong S et al. Performance comparison of ultrasonography and magnetic resonance imaging in their diagnostic accuracy of placenta accreta spectrum disorders: A systematic review and meta-analysis. Insights Imaging. 2022;13:50 (Mar 22). Doi: 10.1186/s13244-022-01192-w