Transcatheter aortic valve (TAV) replacement holds promise for a large number of patients who otherwise have limited or no treatment options. However, it also poses various challenges, due to its unique disease treatment mechanism. Successful TAV deployment and function are heavily reliant on the tissue-stent interaction [1,2]. For patients with aortic stenosis, heavy calcium deposition on the valve leaflets and the aortic root can also cause distortion of TAV geometries, resulting in a valve of an elliptical shape [3–5] instead of a nominal circular shape. In a recent study by Schultz et al. [5], the geometry and apposition of the TAV after implantation in 30 patients with aortic stenosis were evaluated using multislice computed tomography. The results indicated that none of the TAV frames reached exactly nominal designed dimensions. The difference between the orthogonal smallest and largest diameters of TAV cross section...
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December 2013
Frontiers Abstracts
Hemodynamic Impact of Transcatheter Aortic Valve Deployment Configuration
Wei Sun
Wei Sun
Tissue Mechanics Laboratory,
University of Connecticut
,Storrs, CT 06269
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Wei Sun
Tissue Mechanics Laboratory,
University of Connecticut
,Storrs, CT 06269
Manuscript received September 27, 2013; final manuscript received October 14, 2013; published online December 5, 2013. Assoc. Editor: Jeffrey E. Bischoff.
J. Med. Devices. Dec 2013, 7(4): 040922 (2 pages)
Published Online: December 5, 2013
Article history
Received:
September 27, 2013
Revision Received:
October 14, 2013
Citation
Sirois, E., Li, K., Calderan, J., Ai, L., and Sun, W. (December 5, 2013). "Hemodynamic Impact of Transcatheter Aortic Valve Deployment Configuration." ASME. J. Med. Devices. December 2013; 7(4): 040922. https://doi.org/10.1115/1.4025938
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