Holesterol in R (48 ?42) compared to Z (27 ?42) mg/dl, p = 0.07. The final total cholesterol was similar between groups. No between group changes in HDL or triglycerides were seen. See Table 1 for changes in vessel wall parameters in the 2 groups. Plaque volume regressed in R while it progressed in Z and total vessel volume followed the same trend (p = 0.11). No between group differences in lumen