Prenatal screening and diagnosis of fetal anomalies rely upon ultrasound studies (US). US is generally considered safe during pregnancy. It is estimated that 1% of all neonates are born with a congenital heart defect that makes careful standardized examination of the fetal heart a mandatory step during all fetal US exams. US examination of the fetal heart requires at least analysis of the fetal situs, the four-chamber (4CH) view and the three-vessel view (3V). In the evaluation of the fetal heart, it is now worldwide accepted that the three-vessel trachea (3VT) view should be obtained, if technically feasible, in supplement of the other classical fetal cardiac views (4CH, 3V). The relevance of adding the 3VT view is that some congenital cardiovascular abnormalities, potentially significant for fetal outcome, can only be diagnosed with this view; these malformations include vascular rings and right aortic arches. Read More

Meeting name: SPR 2019 Annual Meeting & Postgraduate Course , 2019

Authors: Dery Julie, Rypens Francoise, Garel Juliette, Raboisson Marie-josee, Lapierre Chantale

Keywords: Fetal ultrasonography, Three-vessel tracheal view, Vascular ring

Capillary malformation-arteriovenous malformation (CM-AVM) is an autosomal dominant disorder with variable phenotype caused by heterozygous inactivating mutations in the RASA1 gene located on chromosome 5. Clinical manifestations are variable with cutaneous multifocal capillary malformation associated with fast-flow lesions. Most of them are located in soft tissues (intramuscular, intraosseous, spinal or cerebral). Many authors reported the clinical spectrum or the genetic association but few data are available on the imaging characteristics or criteria to establish the diagnosis of AVM. The goal of this poster is to review the imaging characteristics in the RASA1 series of our institution and in particular to evaluate the distribution of patients having true AVMs versus capillary hypervascularity. Read More

Meeting name: SPR 2019 Annual Meeting & Postgraduate Course , 2019

Authors: Thomas-chausse Frederic, Proisy Maïa, Mccuaig Catherine, Rypens Francoise, Lapierre Chantale, Dubois Josée

Keywords: RASA1, Magnetic Resonance, Angiography