Title :
Alignment maps for heart valve leaflets
Author :
Tower, Theodore T. ; Neidert, Michael R. ; Tranquillo, Robert T.
Author_Institution :
Dept. of Chem. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
Heart valve replacement motivates the need to benchmark substitutes in terms of geometry and alignment. We present an application of our polarized light imaging method to characterize native and bioartificial heart valves. We interrogated a porcine valve leaflet with elliptically polarized light and an effective circular analyzer and using standard image processing routines and nonlinear regression, generated an alignment map for the leaflet
Keywords :
bio-optics; biological tissues; cardiology; medical image processing; optical microscopy; prosthetics; alignment maps; artificial heart valves; biopolymer matrix; cellular alignment; cellular remodelling; collagen alignment; effective circular analyzer; elliptically polarized light; heart valve leaflets; heart valve replacement; image mosaics; native heart valves; nonlinear regression; polarized light imaging method; porcine valve leaflet; standard image processing routine; tissue engineering; Biomedical optical imaging; Fiber nonlinear optics; Heart valves; Materials science and technology; Nonlinear optics; Optical polarization; Optical retarders; Optical variables control; Poles and towers; USA Councils;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802225
