Absolute assessment of aortic valve stenosis by planimetry using cardiovascular magnetic resonance imaging: Comparison with transœsophageal echocardiography, transthoracic echocardiography, and cardiac catheterisation
作者： Patricia Reant , Mathieu Lederlin , Stephane Lafitte , Karim Serri , Michel Montaudon
DOI: 10.1016/J.EJRAD.2006.02.011
关键词:
摘要: Abstract Objective The aims of this study were to investigate absolute assessment aortic valve area (AVA), before surgery for stenosis, using cardiovascular magnetic resonance (CMR) in comparison with transœsophageal echocardiography (TEE) and effective AVA indirectly obtained by routine techniques i.e. transthoracic (TTE) cardiac catheterisation. Materials methods Absolute planimetry was performed TEE CMR steady state free precession sequences through the valvular plane. Effective calculated continuity equation TTE catheterisation (Gorlin formula). Results Thirty-nine patients mean age 71.7±7.6 years, a 0.93±0.31cm 2 as measured TEE, enrolled study. Mean differences were: between planimetry: d =0.01±0.14cm , catheterisation: =0.05±0.13cm TTE: =0.10±0.17cm TEE: =0.10±0.18cm =0.06±0.16cm =0.07±0.13cm . intraobserver interobserver =0.02±0.07cm =0.03±0.14cm respectively. Conclusion is noninvasive reproducible technique evaluate stenotic valves can be used an alternative or
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