Aortic aneurysm and stenosis are the most severe post-interventional complications after angioplasty of CoA and require regular follow-up. Twenty children (4 2/12-13 11/12 years old) underwent MRI within 3 months to 5 7/12 years after dilatation. All children were in a good state of health and showed no signs of heart failure. Three patients suffered from arterial hypertension; seven children showed hypertension on exertion. In six children, a resting gradient (minimal 20 mm Hg, maximal 40 mm Hg) between the upper and lower extremities could be measured. Four children showed pathological changes of the ascending aorta, three had a moderate ectasia, one had severe dilatation of more than 5 cm in diameter. In three cases, a circumscript aneurysm of the descending aorta was found. In many cases, there were mild changes in the aortic wall in the region of dilatation. In 12 children, there was a moderate spindly dilatation distal to the aortic isthmus, which, however, could be seen in the pre-dilatation angiography. After dilatation of CoA, several patients continue to have hypertension and pathological changes of the thoracic aorta. With regard to adequate therapy, regular controls are necessary. Besides routine examinations, MRI is an effective non invasive imaging method for the initial investigation and short-time follow-up evaluation of CoA.
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Magn Reson Med
January 2025
Department of Radiology & Nuclear Medicine, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Purpose: To correct maternal breathing and fetal bulk motion during fetal 4D flow MRI.
Methods: A Doppler-ultrasound fetal cardiac-gated free-running 4D flow acquisition was corrected post hoc for maternal respiratory and fetal bulk motion in separate automated steps, with optional manual intervention to assess and limit fetal motion artifacts. Compressed-sensing reconstruction with a data outlier rejection algorithm was adapted from previous work.
Pediatrics
January 2025
Department of Pediatric Cardiology and Critical Care, Hannover Medical School, Hannover, Germany.
Coarctation of the aorta (CoA) is a potentially life-threatening congenital and obstructive anomaly of the distal aortic arch. After constriction of the ductus arteriosus, neonates may develop critical CoA in the isthmus area and present with severe left ventricular dysfunction or even cardiac failure. Low cardiac output and abdominal hypoperfusion (distal to the coarctation) may lead to metabolic derangements and clinical deterioration.
View Article and Find Full Text PDFInt J Cardiol
December 2024
Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Clinical Research Center for Medical Imaging in Hubei Province, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China. Electronic address:
Background: Our study aimed to develop a novel diagnostic model for fetal coarctation of the aorta with ventricular septal defect(CoA/VSD).
Methods And Results: We respectively included 70 fetuses with suspected CoA/VSD(January 2017-June 2023). After birth, 26 fetuses (26/47, 55.
Kyobu Geka
November 2024
Department of Surgery, Saiseikai Yamaguchi Hospital, Yamaguchi, Japan.
A 77-year-old man had severe aortic stenosis and continuous atrial fibrillation. We performed maze procedure without left atrial incision( Dallas lesion set) during aortic valve replacement for this patient. Dallas lesion set alternates the isolation of mitral isthmus by connecting ablation line beneath left coronary cusp and noncoronary cusp commissure of the aortic valve with ablation from epicardial side of the upper left atrium.
View Article and Find Full Text PDFRadiol Cardiothorac Imaging
December 2024
From the Departments of Radiology (E.K.E., T.F., M.L.M., L.P.B., A.J.B.), Pediatrics-Cardiology (R.M.F.), and Bioengineering (A.J.B.), University of Colorado Anschutz Medical Campus, 13123 E 16th Ave B125, Aurora, CO 80045; and Department of Radiology, Children's Hospital Colorado, Aurora, Colo (S.A.S., A.J.B.).
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