Research in this area is rigorous and ongoing however, it is often hampered by the complexities of the human arterial system, the wide array of variables presented in each individual case and the amount of data that must be weighed and analyzed. But side effects such as post-procedure blood clots and heart attacks are still too common. This was created with Tecplot 360, a CFD visualization tool that helps to analyze and understand complex simulation data. The insets show high magnification images of the drug pattern (A) on the lateral wall of the main branch and (B) near the region where the flow divides at the bifurcation. A drug is released from the surfaces of the stent, where the red color indicates regions of more drug and blue indicates low drug concentration.
This image shows the surface contour map of drug concentration in a bifurcating artery. Today, they are viewed as reasonably low-risk, commonplace procedures-with more than 1 million patients receiving stent implants every year in the U.S. Coronary stent installations were once regarded as miracles of modern medicine.
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