Predictive Value and Limitations of the Placenta Accreta Index: A Systematic Review

Research output: Contribution to journalReview articlepeer-review


Our systematic review highlights that multiparametric PAI score assessment is a consistent tool with high sensitivity and specificity for prenatal prediction for placenta accreta spectrum (PAS) in high-risk population with anterior placenta previa or low-lying placenta and prior cesarean deliveries. A systematic search was conducted on November 1, 2022, of MEDLINE via PubMed, Scopus, Web of Science Core Collection, Cochrane Library, and Google Scholar to identify relevant studies (PROSPERO ID # CRD42022368211). A total of 11 articles met our inclusion criteria, representing the data of a total of 1,044 cases. Women with PAS had an increased mean PAI total score, compared to those without PAS. Limitations of the PAI are most studies were conducted in developing countries in high-risk population which limit the global generalizability of findings. Heterogeneity of reported data did not allow to perform meta-analysis.

Original languageEnglish (US)
JournalJournal of Ultrasound in Medicine
StateAccepted/In press - 2024


  • abnormal placentation
  • placenta accreta index
  • placenta accreta spectrum
  • prenatal diagnosis of placenta accreta
  • ultrasound in obstetrics

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging


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