title: Intravascular ultrasound evidence of ostial narrowing in nonatherosclerotic left main coronary arteries.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging*; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D017539:Tunica Intima / Q000000981:diagnostic imaging*; D018084:Ultrasonography, Interventional / Q000592:standards*