Assessment of total placenta previa by magnetic resonance imaging and ultrasonography to detect placenta accreta and its variants.
Ginekol Pol
; 84(3): 186-92, 2013 Mar.
Article
em En
| MEDLINE
| ID: mdl-23700845
ABSTRACT
OBJECTIVE:
To evaluate the importance of ultrasonography (US) and magnetic resonance imaging (MRI) in detecting placental adherence defects. MATERIAL ANDMETHODS:
Patients diagnozed with total placenta previa (n = 40) in whom hysterectomy was performed due to placental adherence defects (n = 20) or in whom the placenta detached spontaneously after a Cesarean delivery (n = 20) were included into the study between June 2008 and January 2011, at the Department of Obstetrics and Gynecology Ege University (lzmir Turkey). Gray-scale US was used to check for any placental lacunae, sub-placental sonolucent spaces or a placental mass invading the vesicouterine plane and bladder Intra-placental lacunar turbulent blood flow and an increase in vascularization in the vesicouterine plane were evaluated with color Doppler mode. Subsequently all patients had MRI and the results were compared with the histopathologic examinations.RESULTS:
The sensitivity of MRI for diagnosis of placental adherence defects before the operation was 95%, with a specificity of 95%. In the presence of at least one diagnostic criterion, the sensitivity and specificity of US were 87.5% and 100% respectively, while the sensitivity of color Doppler US was 62.5% with a specificity of 100%.CONCLUSIONS:
Currently MRI appears to be the gold standard for the diagnosis of placenta accreta. None of the ultrasonographic criteria is solely sufficient to diagnose placental adherence defects, however they assist in the diagnostic process.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Placenta Acreta
/
Placenta Prévia
/
Resultado da Gravidez
/
Saúde da Mulher
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
/
Female
/
Humans
/
Pregnancy
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article