Coronary flow estimates were made for a spiral coronary artery segment (identified from a post-mortem replica casting) by using a modified Dean number based on the approximate coil radius of curvature, as suggested earlier. The estimates were found to correlate experimental pressure drop data for helical coiled tubes. Over a physiological range of mean Reynolds numbers from 100 to 400 for blood flow through main coronary arteries, estimates of the flow resistance increase relative to a straight lumen segment ranged from about 20 to 80 percent, and were of similar magnitude to those found in a flow study in a sinuous coronary vessel segment with no spiral. [S0148-0731(00)01706-4]
Estimated Flow Resistance Increase in a Spiral Human Coronary Artery Segment
Contributed by the Bioengineering Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS. Manuscript received by the Bioengineering Division December 27, 1999; revised manuscript received August 10, 2000. Associate Technical Editor: A. P. Yoganathan.
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Back , L. H., and Banerjee , R. K. (August 10, 2000). "Estimated Flow Resistance Increase in a Spiral Human Coronary Artery Segment ." ASME. J Biomech Eng. December 2000; 122(6): 675–677. https://doi.org/10.1115/1.1319661
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