INTRAVASCULAR ULTRASOUND FOR ANGIOGRAPHICALLY INDETERMINANT LEFT MAINCORONARY-ARTERY DISEASE

The precise diagnosis of the presence of significant left main coronar y artery disease has profound prognostic and therapeutic implications. Coronary cineangiography has shown to be imprecise and inaccurate to determine the percent stenosis of the left main coronary artery. We re port a case with significant left main coronary artery disease in whom coronary cineangiography was in discordance with the clinical data an d intravascular ultrasonography. Based on the intravascular ultrasound findings, the patient underwent coronary artery bypass graft surgery. Therefore, the intravascular ultrasonography may be the procedure of choice for assessing indeterminant left main coronary artery lesions b y coronary angiography.