Applicability of Magnetic Resonance Imaging in the Assessment of Fetal Urinary Tract Malformations
| Autor: | Pedro Daltro, Glaucia Macedo Lima, Adauto Dutra Moraes Barbosa, Alberto Borges Peixoto, Tatiana Fazecas, Edward Araujo Júnior, Heron Werner |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Pathology medicine.medical_specialty Urinary system 030218 nuclear medicine & medical imaging Cohort Studies 03 medical and health sciences 0302 clinical medicine Pregnancy Prenatal Diagnosis medicine Humans Radiology Nuclear Medicine and imaging Urinary Tract Retrospective Studies URINARY TRACT MALFORMATION Fetus 030219 obstetrics & reproductive medicine medicine.diagnostic_test business.industry Ultrasound Magnetic resonance imaging Retrospective cohort study General Medicine Magnetic Resonance Imaging Complement (complexity) Urogenital Abnormalities Female business Brazil |
| Zdroj: | Canadian Association of Radiologists Journal. 70:83-95 |
| ISSN: | 1488-2361 0846-5371 |
| DOI: | 10.1016/j.carj.2018.10.006 |
| Popis: | ObjectiveTo assess the applicability of magnetic resonance imaging (MRI) to complement ultrasound in the diagnosis of fetal urinary tract anomalies.MethodsThis was a retrospective cohort study that included 41 women between 19 weeks and 37 weeks and 6 days of gestation carrying fetuses with malformations of the urinary tract which were initially diagnosed by ultrasound and then referred for MRI. In all cases, the diagnosis was confirmed after birth either through imaging or autopsy. A surface coil was positioned over the abdomen and T2-weighted sequences were obtained in the axial, coronal, and sagittal planes; T1 in at least one plane; and three-dimensional (3-D) TRUFI in fetuses with dilatation of the urinary tract.ResultsMean gestational age at the time of MRI examination was 28.21 weeks. The rapid T2 sequences allowed all the anomalies of the fetal urinary tract to be assessed, whereas 3-D TRUFI sequencing proved very useful in evaluating anomalies involving dilatation of the urinary tract. The signs of pulmonary hypoplasia characterized by hypointense signal in the T2-weighted sequences were identified in 13 of the 41 fetuses.ConclusionMRI confirmed and added information to the ultrasound regarding fetal urinary tract anomalies, as well as information related to the other associated malformations, their progress in the prenatal period, and possible postnatal prognosis. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|