BACKGROUND: This study sought to compare cardiac magnetic resonance imaging (CMR) with dual source computed tomography (DSCT) for analysis of aortic root dimensions prior to transcatheter aortic valve implantation (TAVI). In addition, the potential impact of CMR and DSCT measurements on TAVI strategy defined by 2D-transesophageal echocardiography (TEE) was evaluated. METHODS: Aortic root dimensions were measured using CMR and DSCT in 58 patients referred for evaluation of TAVI. The TAVI strategy (choice of prosthesis size and decision to implant) was based on 2D-TEE annulus measurements. RESULTS: CMR and DSCT aortic root measurements showed an overall good correlation (r=0.86, p<0.001 for coronal aortic annulus diameters). There was also a good correlation between TEE and CMR as well as between TEE and DSCT for measurement of sagittal aortic annulus diameters (r=0.69, p<0.001). However, annulus diameters assessed by TEE (22.1±2.3mm) were significantly smaller than coronal aortic annulus diameters assessed by CMR (23.4±1.8mm, p<0.001) or DSCT (23.6±1.8, p<0.001). Regarding TAVI strategy, the agreement between TEE and sagittal CMR (kappa=0.89) as well as sagittal DSCT measurements (kappa=0.87) was statistically perfect. However, decision based on coronal CMR- or MSCT measurements would have modified TAVI strategy as compared to a TEE based choice in a significant number of patients (22% to 24%). CONCLUSION: In patients referred for TAVI, CMR measurements of aortic root dimensions show a good correlation with DSCT measurements and thus CMR may be an alternative 3D-imaging modality. Aortic annulus measurements using TEE, CMR and DSCT were close but not identical and the method used has important potential implications on TAVI strategy.
BACKGROUND: This study sought to compare cardiac magnetic resonance imaging (CMR) with dual source computed tomography (DSCT) for analysis of aortic root dimensions prior to transcatheter aortic valve implantation (TAVI). In addition, the potential impact of CMR and DSCT measurements on TAVI strategy defined by 2D-transesophageal echocardiography (TEE) was evaluated. METHODS: Aortic root dimensions were measured using CMR and DSCT in 58 patients referred for evaluation of TAVI. The TAVI strategy (choice of prosthesis size and decision to implant) was based on 2D-TEE annulus measurements. RESULTS: CMR and DSCT aortic root measurements showed an overall good correlation (r=0.86, p<0.001 for coronal aortic annulus diameters). There was also a good correlation between TEE and CMR as well as between TEE and DSCT for measurement of sagittal aortic annulus diameters (r=0.69, p<0.001). However, annulus diameters assessed by TEE (22.1±2.3mm) were significantly smaller than coronal aortic annulus diameters assessed by CMR (23.4±1.8mm, p<0.001) or DSCT (23.6±1.8, p<0.001). Regarding TAVI strategy, the agreement between TEE and sagittal CMR (kappa=0.89) as well as sagittal DSCT measurements (kappa=0.87) was statistically perfect. However, decision based on coronal CMR- or MSCT measurements would have modified TAVI strategy as compared to a TEE based choice in a significant number of patients (22% to 24%). CONCLUSION: In patients referred for TAVI, CMR measurements of aortic root dimensions show a good correlation with DSCT measurements and thus CMR may be an alternative 3D-imaging modality. Aortic annulus measurements using TEE, CMR and DSCT were close but not identical and the method used has important potential implications on TAVI strategy.
Authors: Peter Bernhardt; Christoph Rodewald; Julia Seeger; Birgid Gonska; Dominik Buckert; Michael Radermacher; Vinzenz Hombach; Wolfgang Rottbauer; Jochen Wöhrle Journal: Clin Res Cardiol Date: 2015-09-22 Impact factor: 5.460
Authors: Matthias Renker; Akos Varga-Szemes; U Joseph Schoepf; Stefan Baumann; Davide Piccini; Michael O Zenge; Wolfgang G Rehwald; Edgar Müller; Jeremy D Rier; Helge Möllmann; Christian W Hamm; Daniel H Steinberg; Carlo N De Cecco Journal: Eur Radiol Date: 2015-07-20 Impact factor: 5.315
Authors: Federico E Mordini; Conor F Hynes; Richard L Amdur; Jeffrey Panting; Dominic A Emerson; Jason Morrissette; Erin Goheen-Thomas; Michael D Greenberg; Gregory D Trachiotis Journal: Int J Cardiovasc Imaging Date: 2021-03-10 Impact factor: 2.357
Authors: Linda M de Heer; Jesse Habets; Jolanda Kluin; Pieter R Stella; Willem P Th M Mali; Lex A van Herwerden; Ricardo P J Budde Journal: Int J Cardiovasc Imaging Date: 2012-08-09 Impact factor: 2.357
Authors: Simon Veldhoen; Cyrus Behzadi; Thorsten Derlin; Meike Rybczinsky; Yskert von Kodolitsch; Sara Sheikhzadeh; Frank Oliver Henes; Thorsten Alexander Bley; Gerhard Adam; Peter Bannas Journal: Eur Radiol Date: 2014-10-15 Impact factor: 5.315