The Region - News from Jan. 16, 1985

Doctors at Cedars-Sinai Medical Center and two other hospitals are testing the ability of various dyes to make artery clogging material more sensitive to laser beam treatment and to allow more precise control of the beams in treatment of coronary disease. Researchers have discovered that laser beams can literally vaporize the muscle and fatty cells that cause blockages--but they are still trying to learn how to avoid puncturing blood vessel walls in the process.