Diagnostic Performance of Antenatal Ultrasound for High-Risk Intestinal Malrotation

Inclusion Criteria: * Pregnant women over the age of 18 * Good understanding of French * Gestational age greater than or equal than 31 weeks * Fetal MRI indication validated in multidisciplinary staff at weekly meetings of the Multidisciplinary Prenatal Diagnosis Center in Montpellier or Nimes * Affiliation or beneficiary of a social security scheme * Declaration of free and enlightened opposition Exclusion Criteria: * Complex fetal abdominal malformations responsible for difficult interpretation of imaging: heterotaxis with asplenia or polysplenium, diaphragmatic hernia, omphalocele, gastroschisis, digestive pathology, abdominal tumor, bladder exstrophy or megavessia. * Fetal chromosomal abnormality * Request for termination of pregnancy validated by a Multidisciplinary Pre-natal Diagnosis Center