Erschienen in:
09.08.2018 | Images in CV Applications
Presence of aortic root vortex formation after TAVI with CENTERA confirmed using 4D-flow magnetic resonance imaging
verfasst von:
J. Vendrik, E. S. Farag, N. H. L. C. de Hoon, J. Kluin, J. Baan Jr.
Erschienen in:
The International Journal of Cardiovascular Imaging
|
Ausgabe 12/2018
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Excerpt
Novel nitinol, self-expandable, short bodied transcatheter aortic valve implantation (TAVI) prostheses allow for magnetic resonance imaging (MRI)-based evaluation of the left ventricle and aortic root, due to a relatively small susceptibility artefact. We have employed four dimensional (4D-) flow MRI-analysis in 3 patients, 2 years after uncomplicated TAVI with the new CENTERA prosthesis (Fig.
1c, patients included in the CENTERA-EU Trial, NCT02458560). Thoracic 4D flow MRI was conducted at 3.0 T with a spatial and temporal resolution of 2.5 mm
3 and ± 42 milliseconds. Vortex formation in the three sinuses of Valsalva was analyzed using advanced streamline techniques. …