1. Multi-detector computed tomography is equivalent to trans-oesophageal echocardiography for the assessment of the aortic annulus before transcatheter aortic valve implantation
- Author
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Christian Schneider, Sebastian Szardien, Annika Schuhbaeck, Helge Moellmann, Christoph Liebetrau, Johannes Rixe, Roland R. Brandt, C. W. Hamm, Thomas Neumann, Andreas Rolf, Gabriele Krombach, Joern Schmitt, Stephan Achenbach, and Holger Nef
- Subjects
Male ,Aortic valve ,Cardiac Catheterization ,medicine.medical_specialty ,medicine.medical_treatment ,Diastole ,Contrast Media ,Statistics, Nonparametric ,medicine.artery ,Image Interpretation, Computer-Assisted ,Preoperative Care ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Prospective Studies ,cardiovascular diseases ,Cardiac skeleton ,Cardiac catheterization ,Aged, 80 and over ,Heart Valve Prosthesis Implantation ,Annulus (mycology) ,Aorta ,business.industry ,Reproducibility of Results ,Aortic Valve Stenosis ,General Medicine ,musculoskeletal system ,equipment and supplies ,Iopamidol ,medicine.anatomical_structure ,Aortic Valve ,Heart Valve Prosthesis ,cardiovascular system ,Female ,Tomography ,Radiology ,Aortic valve calcification ,Artifacts ,Tomography, X-Ray Computed ,business ,human activities ,Echocardiography, Transesophageal - Abstract
In transcatheter aortic valve implantation (TAVI), assessment of the aortic annulus is mandatory. We sought to investigate the correlation between trans-oesophageal echocardiography (TEE) and multi-detector computed tomography (MDCT) for annulus diameter assessment before TAVI. A total of 122 patients (67 male, mean age 84 ± 6 years) underwent MDCT and TEE for TAVI planning. In TEE annulus diameters were obtained in a long-axis view at diastole. MDCT data were evaluated using MPR images, and corresponding projections were adjusted for MDCT and TEE. Patients were classified by the predominant localisation of aortic valve calcifications, and annulus diameters between TEE and MDCT were correlated. Additionally, the eccentricity of the aortic annulus was calculated. Mean eccentricity of the aortic annulus determined by MDCT was 0.34 ± 0.17, with no difference according to valve calcification. Regarding the aortic annulus diameter, the mean values measured were 24.3 ± 2.1 mm in MDCT and 24.0 ± 2.5 mm in TEE (P
- Published
- 2012
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