Thanks to evolving technologies, treatments for diseases of the heart, arteries, and veins could soon see improvements by way of the laser.HANK HOGAN, CONTRIBUTING EDITORFor some cardiovascular patients, laser-based procedures have become the best, and perhaps only, option to relieve pain and restore function associated with many diseases of the heart, arteries, and veins. New wavelengths, more rugged setups, lower-cost systems, and other advancements are being combined with minimally invasive techniques. Such combinations often promise improved patient outcomes and lower overall cost of therapy. 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