CMR assessment after a transapical-transcatheter aortic valve implantation
| Autor: | Stéphane Delépine, Serge Willoteaux, Victor Mateus, F. Rouleau, Sylvain Grall, Jean-Louis De Brux, Alain Furber, Nathalie Viot, Frédéric Pinaud, Loïc Bière, Jean-Jacques Corbeau, Fabrice Prunier |
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| Rok vydání: | 2014 |
| Předmět: |
Male
Aortic valve medicine.medical_specialty medicine.medical_treatment Myocardial Infarction Magnetic Resonance Imaging Cine Infarction Context (language use) Sensitivity and Specificity Prosthesis Cicatrix Cardiac magnetic resonance imaging Internal medicine Myocardial scarring Humans Medicine Radiology Nuclear Medicine and imaging cardiovascular diseases Aged 80 and over Heart Valve Prosthesis Implantation Ejection fraction medicine.diagnostic_test business.industry Reproducibility of Results Aortic Valve Stenosis General Medicine medicine.disease Hyperintensity Treatment Outcome medicine.anatomical_structure cardiovascular system Cardiology Female medicine.symptom Artifacts business |
| Zdroj: | European Journal of Radiology. 83:303-308 |
| ISSN: | 0720-048X |
| Popis: | Aims To describe the time course of myocardial scarring after transapical-transcatheter aortic valve implantation (TA-TAVI) with the Edwards SAPIEN XT™ and the Edwards SAPIEN™ prosthesis in a 3-month follow-up study using cardiac magnetic resonance imaging (CMR). Methods In 20 TA-TAVI patients, CMR was performed at discharge and 3 months (3M). Cine-MRI was used for left ventricular (LV) functional assessment, and late gadolinium enhancement (LGE) imaging was employed for detecting the presence of myocardial scarring. Special attention was given to any artifacts caused by the prosthesis, which were consequently defined using a three-grade artifact scale. Results We systematically reported the presence of small LGE hyperintensity relating to the apical segment, with no variation found between discharge and 3 M (2.8 ± 1.6 g vs. 2.35 ± 1.1 g). LV ejection fraction, end-diastolic, and end-systolic volumes did not significantly vary. A small area of apical akinesia was observed, with no improvement at follow-up. Whereas the Edwards SAPIEN XT™ prosthesis and the Edwards SAPIEN™ prosthesis are both constituted by metallic stenting structure, the Edwards SAPIEN™ was responsible for a larger signal void, thus potentially limiting the diagnostic performance of CMR. Conclusions CMR may be performed safely in the context of TA-TAVI. The presence of a very small apical infarction correlating with focal akinesia was observed. As expected, the Edwards SAPIEN XT™ prosthesis was shown to be particularly suitable for CMR assessment. |
| Databáze: | OpenAIRE |
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