Objectives To compare the accuracy of transvaginal sonography (TVS)

Objectives Peritoneal carcinomatosis involves the dissemination of intra-abdominal tumor tissue often asso

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Oral communication abstractsprovided clinically/prognostically important information in five cases and additional clinically irrelevant information in four. In the former group, the ultrasound diagnoses were: MCM + inferior vermis defect (MRI: isolated MCM), hydrocephalus + partial ACC (MRI: hydrocephalus), borderline ventriculomegaly + craniosynostosis + hemimegalencephaly (MRI: borderline ventriculomegaly), hypoplasia of the CC splenium (MRI: normal CC) and corpus callosum lipoma (MRI: + lissencephaly). Overall, the prognosis of the lesion was changed by the MRI examination in 5/92 cases (5.4%), while it increased the confidence of the diagnosis in 21/92 cases (22.8%). Conclusions: Expert neurosonography is able to reach a conclusive diagnosis in most CNS abnormalities referred to a tertiary center. The use of MRI as a second-line diagnostic procedure has a specific place in the evaluation of selected fetal anomalies, following specific queries raised by the expert neurosonologist. OC159Three-dimensional ultrasound in examination of the fetal head: its role in basic and advanced examination of the fetal brain during the second trimester