Can diffusion weighting replace gadolinium enhancement in magnetic resonance enterography for inflammatory bowel disease in children?

Background: Contrast-enhanced MRI is often used for diagnosis and follow-up of children with inflammatory bowel disease.

Objective: To compare the accuracy of diffusion-weighted MRI (DWI) to contrast-enhanced MRI in children with known or suspected inflammatory bowel disease.

Materials And Methods: This retrospective, consecutive study included 55 children.

[Post-mortem perinatal imaging: State of the art and perspectives, with an emphasis on ultrasound].

The fields of application of post-mortem imaging have been exponentially growing for 10 years. Its potential to identify the cause of death in trauma and ballistic cases is now properly documented. In pediatric and perinatal practice, large significant series are less available, except for MRI and central nervous system analysis where scientific evidence is now robust.

Fetal skeletal computed tomography: when? How? Why?

Purpose: To study the additional role of fetal skeletal computed tomography in suspected prenatal bone abnormalities.

Materials And Methods: Two centers included in a retrospective study all fetuses who benefited from skeletal computed tomography for a suspected constitutional bone disease or focal dysostosis.

Results: A total of 198 patients were included.

A prospective pilot study: can the biliary tree be visualized in children younger than 3 months on Magnetic Resonance Cholangiopancreatography?

Background: Magnetic resonance cholangiopancreatography (MRCP) could aid in the diagnosis of biliary atresia, a hepatic pathology with thin, irregular or interrupted biliary ducts. There is little published evidence of MRCP appearances in normal neonates and young infants.

Objective: To assess the use of MR cholangiopancreatography in visualizing the biliary tree in neonates and infants younger than 3 months with no hepatobiliary disorder, and to assess this visibility in relationship to the child's age, weight, and sedation and fasting states.

Contribution of the foetal uro-MRI in the prenatal diagnosis of uronephropathies.

Purpose: To study the complementary diagnostic value and role in the perinatal management of foetal MRI in the prenatal diagnosis of abnormalities of the urinary tract.

Patients And Methods: Retrospective monocentric study from November 2002 to June 2011 of foetuses benefiting from an MRI after ultrasound diagnosis of uronephropathy abnormalities. Ultrasound and MRI data were compared with postnatal radiological and/or surgical data or with the foetopathology.