Coronary artery disease (CHD) remains to be a leading cause of death in most countries (1) (2). It is well known that reducing cholesterol level by statin therapy is associated with significant reduction in plaque burden. REVERSAL (3) and ASTEROID (4) trials showed that in patients with coronary artery disease lipid-lowering with atorvastatin or rosuvastatin respectively reduced progression of coronary atherosclerosis and even cause repression of some lesions. CHD clinical events are related to plaque instability due to lipid content within the atherosclerotic plaque. High dose atorvastatin has shown to reduce the plaque lipid contents on serial IVUS analysis at 12 months. Therefore reduction in lipid content and thereby the plaque burden by lipid lowering therapy may stabilize the plaque and reduce cardiovascular events. High sensitivity C-reactive Protein (HsCRP) is an inflammatory biomarker that independently predicts future vascular events. In JUPITER (5) trial rosuvastatin (Crestor) significantly reduced the incidence of major cardiovascular events in apparently healthy people with elevated HsCRP. IVUS was utilized to demonstrate change in coronary artery vessel wall morphology over a relatively short period of time, but provided no data on the lipid content in the vessel wall. The application of NIR spectroscopy to identify lipid deposition within coronary arteries has been validated in ex vivo studies. Infrared spectra are collected as follows: Light of discrete wavelengths from a laser is directed onto the tissue sample via glass fibers. Light scattered from the samples is collected in fibers and launched into a spectrometer. The plot of signal intensity as a function of wavelength was used to develop chemometric models to discriminate lipid-cores from non-atherosclerotic tissue, and from atherosclerotic tissue that is predominantly fibrotic and from blood elements.