Treating tumors with a laser is a hot topic, one that keenly interests Dr.William M. Whelan, associate pro-fessor of physics at the University of PrinceEdward Island in Charlottetown, Canada.Potentially, lasers can heat up and destroythe cancer in place. The challenge hasbeen how to track the effect of this andother treatments in animals and people.In the past, researchers had to make dowith techniques based on ionizing x-rays,which themselves can cause cancer. Thatfact limited possible imaging.
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