Could particle accelerators be used in controlled nuclear fusion?

The really big problem in controlled nuclear fusion is that we simply aren't very comfortable working at temperatures of several hundred millions of degrees Kelvin. Now, in stars, the temperatures can be somewhat lower, because of the density of matter at their centers. But, there doesn't appear to be any practical way of achieving a similar effect here on earth. But, we do have a very well developed technology for increasing the energy of particles, already. Cyclotrons, or particle accelerators. Could the energy of matter be increased systematically using a combination of kinetic energy from a particle accelerator, and heat energy from masses of lasers? Is this an approach to controlled nuclear fusion worth considering?