Left main coronary artery diameter - A correlation between intravascular ultrasound and quantitative coronary angiography.

Coronary angiography mostly underestimates coronary artery size. Indian data is scarce on correlating quantitative angiographic coronary diameter (D) to intravascular ultrasound derived coronary diameter (D). We retrospectively analyzed 10-year data (2008-2017) of patients undergoing IVUS guided left main percutaneous coronary intervention (LM-PCI).