title: Iatrogenic neonatal type B aortic dissection: comprehensive MRI-based diagnosis and follow-up.
abstract: Neonatal aortic dissection is rare and most frequently iatrogenic. Decision making and appropriate imaging are highly challenging for pediatric cardiologists and radiologists. We present MRI and echocardiographic findings in the follow-up at 6 months of age of a boy with a conservatively treated iatrogenic neonatal aortic dissection (type B). To evaluate the morphology of the aortic arch and descending aorta, we carried out multidirectional time-resolved three-dimensional flow-analysis and contrast-enhanced MR angiography (CE-MRA). The MRI and Doppler echocardiographic results were closely comparable. Three-dimensional visualization helped assess details of blood flow acceleration and alteration caused by the dissection, and played a key role in our deciding not to treat surgically.
authors.affiliation: Department of Diagnostic Radiology and Medical Physics, University Hospital Freiburg, Hugstetter Str 55, 79106 Freiburg, Germany. julia.geiger@uniklinik-freiburg.de
authors.forename: Julia
authors.initials: J
authors.lastname: Geiger
authors.forename: M
authors.initials: M
authors.lastname: Markl
authors.forename: B
authors.initials: B
authors.lastname: Stiller
authors.forename: C
authors.initials: C
authors.lastname: Schlensak
authors.forename: R
authors.initials: R
authors.lastname: Arnold
mesh_terms: D000015:Abnormalities, Multiple; D000784:Aortic Dissection / Q000175:diagnosis* / Q000000981:diagnostic imaging; D015901:Angiography, Digital Subtraction; D017545:Aortic Aneurysm, Thoracic / Q000175:diagnosis* / Q000000981:diagnostic imaging; D001783:Blood Flow Velocity; D003287:Contrast Media; D015150:Echocardiography, Doppler; D006801:Humans; D007049:Iatrogenic Disease; D021621:Imaging, Three-Dimensional; D007223:Infant; D007231:Infant, Newborn; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male
chemical_list: D003287:Contrast Media