The Ozaki procedure (aortic valve neocuspidization) was first reported by Dr. Shigeyuki in 2011. This involves the recreation of aortic leaflets using autologous pericardium.1Ozaki S. Kawase I. Yamashita H. et al.A total 404 cases reconstruction with glutaraldehyde-treated pericardium.J Thorac Cardiovasc Surg. 2014; 147: 301-306Abstract Full Text PDF PubMed Scopus (153) Google Scholar proposed ...

This paper deals with the problem of finding an average of several curves subject to qualitative constraints. The average curve is the solution of a weighted least squares problem involving the deviation between the given curves and the unknown curve. The qualitative constraints are that some curves are preferred compared to other curves. The qualitative information is converted into constraint...