To compare ultrasound and magnetic resonance imaging in placenta accreta spectrum disorder

Abstract

Background: The incidence of placenta accreta is increasing significantly since last several decades, main risk factor being placenta previa with or without scarred uterus. The present study was conducted to assess all highrisk pregnancies antenatally for placenta accreta spectrum and to compare ultrasound and magnetic resonance imaging in placenta accreta spectrum disorder.
Materials & Methods: A total of 42 placenta previa patients were taken. Ultrasonography and MRI of these women were done and their findings were compared with intraoperative findings.
Results: Sensitivity and specificity of ultrasound and MRI were compared. According to our study, the sensitivity and specificity of ultrasound was 89.47% and 69.6% respectively. Sensitivity and specificity of MRI was 84% and 91.3% respectively
Conclusion: Ultrasound and MRI findings were compared with the intraoperative findings. It was concluded that there is not much significant difference in the sensitivity of ultrasound and MRI though USG carries slightly higher sensitivity, easy accessibility, cost effective and fairly good sensitivity. Both USG and MRI had fairly good sensitivity. Specificity of MRI was better than ultrasound. Ultrasound should be used as a first line investigation because of its cost and accessibility. MRI should be reserved for those cases in which USG is inconclusive like posterior localization of placenta and involvement of pelvic organs.