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- W1971622010 abstract "Compliance mismatch between a host artery and an implanted graft has been suggested as a contributing factor to a small diameter graft failure. In this study, static compliance and dynamic compliance were defined and measured in vitro and in vivo for canine carotid arteries and 2 types of polyurethane grafts. Based on these compliance values, the circumferential modulus (E[theta]) and longitudinal modulus (Ez) were calculated. It was shown that grafts have constant moduli over a wide range of pressure while the moduli of carotid arteries increase significantly with increasing pressure (dynamic E[theta] from 0.20 to 1.32 MPa). Polyurethane grafts are nearly isotropic, with the modulus almost identical in each direction, while carotid arteries are anisotropic (E[theta]/Ez = 2-3). The dynamic moduli are generally higher than static values and are especially pronounced for arteries. Due to these different inherent characteristics, the compliance of a synthetic graft may match that of the host artery only in the circumferential direction and within a small pressure range. A stated limitation is therefore given for complete compliance matching. The results provide a rationale for identifying the degree of compliance match. These efforts may lead to better designed vascular grafts." @default.
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- W1971622010 date "2008-11-12" @default.
- W1971622010 modified "2023-10-13" @default.
- W1971622010 title "On Matching Compliance Between Canine Carotid Arteries and Polyurethane Grafts" @default.
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- W1971622010 doi "https://doi.org/10.1111/j.1525-1594.1997.tb00485.x" @default.
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