Selective removal of cholesterol esters in an arteriosclerotic region of blood vessels with a free‐electron laser

In advanced atherom atherosclerosis, a large amount of lipids, particularly cholesterol esters, accumulates on the arterial wall. The selective removal of cholesterol esters accumulated in the intracellular or extracellular spaces has clinical significance. In the present work, the authors investigated the removal of cholesterol esters by using a free‐electron laser (FEL) in an arteriosclerotic region.