Cardiovascular evaluation in Turner syndrome: utility of MR imaging.
Forty patients with karyotypically proven Turner syndrome were prospectively studied using magnetic resonance imaging (MRI) and echocardiography in order to determine the frequency of cardiovascular anomalies and to assess the utility of both imaging modalities as methods for cardiovascular evaluation in Turner syndrome. Cardiovascular anomalies were found in 45% of patients. A high absolute prevalence of bicuspid aortic valve (17.5%) and aortic coarctation (12.5%) were observed relative to comparable series. Of clinically significant abnormalities, three of five aortic coarctations and four of five ascending aortic dilatations were solely MRI detected and not evident at echocardiographic examination. MRI is thus seen as a valuable adjunct to echocardiography in the cardiovascular evaluation of Turner syndrome patients. The usefulness of MRI primarily relates to its ability to provide excellent visualisation of the entire thoracic aorta where a large proportion of clinically significant anomalies occur in Turner syndrome.
Dawson-Falk
K L
KL
Department of Diagnostic Radiology, Stanford University School of Medicine, California 94305.
Wright
A M
AM
Bakker
B
B
Pitlick
P T
PT
Wilson
D M
DM
Rosenfeld
R G
RG
D000293:Adolescent; D000328:Adult; D001011:Aorta / Q000000981:diagnostic imaging / Q000473:pathology; D001017:Aortic Coarctation / Q000175:diagnosis / Q000000981:diagnostic imaging; D001018:Aortic Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D001021:Aortic Valve / Q000002:abnormalities; D002648:Child; D002675:Child, Preschool; D004108:Dilatation, Pathologic / Q000175:diagnosis / Q000000981:diagnostic imaging; D004452:Echocardiography; D005260:Female; D006330:Heart Defects, Congenital / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D011446:Prospective Studies; D014424:Turner Syndrome / Q000473:pathology*