Detection of angioscopic yellow plaque by intracoronary near-infrared spectroscopy.

Angioscopy can detect vulnerable, lipid-rich coronary plaques (LRPs), but it requires removal of blood plus expert technique and interpretation [(1,2)][1]. We studied the use of a near-infrared spectroscopy (NIRS) intravascular ultrasound (IVUS) catheter [(3)][2], which does not require blood