Intravascular ultrasound assessment of the morphologic similarities between stenoses located in different arteries in the same patient

To study the relation in lesion morphology and composition between multiple vessels, intravascular ultrasound studies were performed on both vessels of 131 patients undergoing subsequent 2-vessel angioplasty. Because multiple stenoses in the same patient appear more dissimilar than similar, we conclude that local factors tend to be more important than patient factors in determining the lesion morphology.