To assist in the design of a compliant coronary vascular graft, a constitutive equation predicting the biomechanical properties of healthy coronary arteries was determined. An experimental design in the physiological range of force and pressure was used to improve data collection. Using a logarithmic complementary energy formulation of the constitutive equation resulted in an exceptional fit to the data. Comparisons showed statistically significant differences between the porcine left anterior descending [LAD] and right coronary artery [RCA] (p<0.02) but no differences between the left circumflex [LCX] and LAD or LCX and RCA (p>0.05).

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