Diagnostic value of ultrasonography and magnetic resonance imaging in pregnant women at risk for placenta accreta
| Autor: | Mohamed Ahmed Youssef, Tarek M Elhawary, Naglaa Lotfy Dabees |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Adult
medicine.medical_specialty Placenta accreta Placenta Accreta Young Adult Abnormal placentation Predictive Value of Tests Pregnancy Placenta medicine Humans Ultrasonography medicine.diagnostic_test Obstetrics business.industry Obstetrics and Gynecology Magnetic resonance imaging Color doppler medicine.disease Magnetic Resonance Imaging medicine.anatomical_structure Predictive value of tests embryonic structures Pediatrics Perinatology and Child Health Female Radiology business |
| Zdroj: | The journal of maternal-fetalneonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 26(14) |
| ISSN: | 1476-4954 |
| Popis: | The purpose of this study was to evaluate whether ultrasonography and magnetic resonance imaging can detect placenta accreta reliably in at-risk patients.Thirty-nine gravid women with abnormal placentation and previous uterine surgery were collected after meeting the inclusion criteria depending on gray scale sonographic findings which suggested placenta accreta. Ultrasonography (US) and resonance imaging (MRI) findings were classified as positive and negative according to presence or absence of imaging criteria of placenta accreta.The surgical findings of our patients confirmed placenta accreta in 8/39 (20.5%) patients. According to gray scale and color Doppler US 11/39 (28.2%) patients were positive and 28/39 (71.8%) were negative for placenta accreta. According to MRI findings, 12/39 (30.7%) patients were positive for placenta accreta and 27/39 (69.3%) were negative. Sensitivity, specificity, positive predictive value, negative predictive value of US and MRI were 82.0%, 89.6%, 72.7%, 92.8% and 88.8%, 86.8%, 66.6%, 96.2%, respectively.US and MRI were useful in the diagnosis of placenta accreta with lacunae and an abnormal color Doppler imaging pattern are the most helpful findings. MRI is most clearly indicated when US findings are ambiguous or there is a posterior placenta. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|